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469752640 = 2657434877
BaseRepresentation
bin11011111111111…
…101101101000000
31012201220220110221
4123333331231000
51430224041030
6114340232424
714432555140
oct3377755500
91181826427
10469752640
11221188125
1211139b714
1376424656
1446560920
152b390e7a
hex1bffdb40

469752640 has 112 divisors (see below), whose sum is σ = 1308396672. Its totient is φ = 157280256.

The previous prime is 469752593. The next prime is 469752671. The reversal of 469752640 is 46257964.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a zygodrome in base 8.

It is a congruent number.

It is an unprimeable number.

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, 93882 + ... + 98758.

Almost surely, 2469752640 is an apocalyptic number.

469752640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 469752640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (654198336).

469752640 is an abundant number, since it is smaller than the sum of its proper divisors (838644032).

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

469752640 is a wasteful number, since it uses less digits than its factorization.

469752640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4944 (or 4934 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 43.

The square root of 469752640 is about 21673.7777048672. Note that the first 4 decimals coincide. The cubic root of 469752640 is about 777.3615872824.

The spelling of 469752640 in words is "four hundred sixty-nine million, seven hundred fifty-two thousand, six hundred forty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 32 35 40 43 56 64 70 80 86 112 140 160 172 215 224 280 301 320 344 430 448 560 602 688 860 1120 1204 1376 1505 1720 2240 2408 2752 3010 3440 4816 4877 6020 6880 9632 9754 12040 13760 19264 19508 24080 24385 34139 39016 48160 48770 68278 78032 96320 97540 136556 156064 170695 195080 209711 273112 312128 341390 390160 419422 546224 682780 780320 838844 1048555 1092448 1365560 1467977 1560640 1677688 2097110 2184896 2731120 2935954 3355376 4194220 5462240 5871908 6710752 7339885 8388440 10924480 11743816 13421504 14679770 16776880 23487632 29359540 33553760 46975264 58719080 67107520 93950528 117438160 234876320 469752640