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106172821480 = 23511402759921
BaseRepresentation
bin110001011100001100…
…1001010111111101000
3101011001100220011102111
41202320121022333220
53214420220241410
6120435232012104
710446030043405
oct1427031127750
9334040804374
10106172821480
1141033876260
12186b1091034
13a020637b2b
1451d2bb92ac
152b6610db8a
hex18b864afe8

106172821480 has 64 divisors (see below), whose sum is σ = 260675081280. Its totient is φ = 38598067200.

The previous prime is 106172821457. The next prime is 106172821481. The reversal of 106172821480 is 84128271601.

It is a super-2 number, since 2×1061728214802 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (106172821481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1741920 + ... + 1801840.

It is an arithmetic number, because the mean of its divisors is an integer number (4073048145).

Almost surely, 2106172821480 is an apocalyptic number.

106172821480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

106172821480 is an abundant number, since it is smaller than the sum of its proper divisors (154502259800).

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

106172821480 is a wasteful number, since it uses less digits than its factorization.

106172821480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63970 (or 63966 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 40.

The spelling of 106172821480 in words is "one hundred six billion, one hundred seventy-two million, eight hundred twenty-one thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 88 110 220 440 4027 8054 16108 20135 32216 40270 44297 59921 80540 88594 119842 161080 177188 221485 239684 299605 354376 442970 479368 599210 659131 885940 1198420 1318262 1771880 2396840 2636524 3295655 5273048 6591310 13182620 26365240 241301867 482603734 965207468 1206509335 1930414936 2413018670 2654320537 4826037340 5308641074 9652074680 10617282148 13271602685 21234564296 26543205370 53086410740 106172821480