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213102259968 = 2831329736013
BaseRepresentation
bin1100011001110111100…
…0100110111100000000
3202101001110111110021010
43012131320212330000
511442413134304333
6241521533000520
721252605215443
oct3063570467400
9671043443233
10213102259968
1182415741024
1235373623140
1317131946220
14a45826965a
155823875563
hex319de26f00

213102259968 has 144 divisors (see below), whose sum is σ = 631853298720. Its totient is φ = 63308808192.

The previous prime is 213102259963. The next prime is 213102259987. The reversal of 213102259968 is 869952201312.

It is a happy number.

It is a super-2 number, since 2×2131022599682 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213102259963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78471 + ... + 657542.

It is an arithmetic number, because the mean of its divisors is an integer number (4387870130).

Almost surely, 2213102259968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213102259968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (315926649360).

213102259968 is an abundant number, since it is smaller than the sum of its proper divisors (418751038752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213102259968 is a wasteful number, since it uses less digits than its factorization.

213102259968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736074 (or 736060 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 48.

The spelling of 213102259968 in words is "two hundred thirteen billion, one hundred two million, two hundred fifty-nine thousand, nine hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 29 32 39 48 52 58 64 78 87 96 104 116 128 156 174 192 208 232 256 312 348 377 384 416 464 624 696 754 768 832 928 1131 1248 1392 1508 1664 1856 2262 2496 2784 3016 3328 3712 4524 4992 5568 6032 7424 9048 9984 11136 12064 18096 22272 24128 36192 48256 72384 96512 144768 289536 736013 1472026 2208039 2944052 4416078 5888104 8832156 9568169 11776208 17664312 19136338 21344377 23552416 28704507 35328624 38272676 42688754 47104832 57409014 64033131 70657248 76545352 85377508 94209664 114818028 128066262 141314496 153090704 170755016 188419328 229636056 256132524 277476901 282628992 306181408 341510032 459272112 512265048 554953802 565257984 612362816 683020064 832430703 918544224 1024530096 1109907604 1224725632 1366040128 1664861406 1837088448 2049060192 2219815208 2449451264 2732080256 3329722812 3674176896 4098120384 4439630416 5464160512 6659445624 7348353792 8196240768 8879260832 13318891248 16392481536 17758521664 26637782496 35517043328 53275564992 71034086656 106551129984 213102259968