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620895352 = 2371117211281
BaseRepresentation
bin100101000000100…
…001110001111000
31121021022202022011
4211000201301320
52232422122402
6141335535304
721246344350
oct4500416170
91537282264
10620895352
1129952a960
12153b2a534
139b8336cc
145c665b60
1539798ed7
hex25021c78

620895352 has 128 divisors (see below), whose sum is σ = 1549601280. Its totient is φ = 225792000.

The previous prime is 620895277. The next prime is 620895377. The reversal of 620895352 is 253598026.

It is a super-2 number, since 2×6208953522 = 771022076270407808, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2209452 + ... + 2209732.

It is an arithmetic number, because the mean of its divisors is an integer number (12106260).

Almost surely, 2620895352 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 620895352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (774800640).

620895352 is an abundant number, since it is smaller than the sum of its proper divisors (928705928).

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

620895352 is a wasteful number, since it uses less digits than its factorization.

620895352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533 (or 529 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 620895352 is about 24917.7718104970. The cubic root of 620895352 is about 853.1121677541.

The spelling of 620895352 in words is "six hundred twenty million, eight hundred ninety-five thousand, three hundred fifty-two".

Divisors: 1 2 4 7 8 11 14 17 22 28 34 44 56 68 77 88 119 136 154 187 211 238 281 308 374 422 476 562 616 748 844 952 1124 1309 1477 1496 1688 1967 2248 2321 2618 2954 3091 3587 3934 4642 4777 5236 5908 6182 7174 7868 9284 9554 10472 11816 12364 14348 15736 16247 18568 19108 21637 24728 25109 28696 32494 33439 38216 39457 43274 50218 52547 59291 64988 66878 78914 86548 100436 105094 118582 129976 133756 157828 173096 200872 210188 237164 267512 276199 315656 367829 415037 420376 474328 552398 652201 735658 830074 1007947 1104796 1304402 1471316 1660148 2015894 2209592 2608804 2942632 3320296 4031788 4565407 5217608 7055629 8063576 9130814 11087417 14111258 18261628 22174834 28222516 36523256 44349668 56445032 77611919 88699336 155223838 310447676 620895352