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507408372 = 2232313071481
BaseRepresentation
bin11110001111100…
…110111111110100
31022100210000102200
4132033212333310
52014344031442
6122203304500
715400620462
oct3617467764
91270700380
10507408372
11240467469
12121b1b130
138117a153
144b563832
152e82d34c
hex1e3e6ff4

507408372 has 72 divisors (see below), whose sum is σ = 1329199872. Its totient is φ = 163036800.

The previous prime is 507408371. The next prime is 507408427. The reversal of 507408372 is 273804705.

507408372 is a `hidden beast` number, since 507 + 4 + 0 + 83 + 72 = 666.

It is a super-3 number, since 3×5074083723 (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (507408371) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 341872 + ... + 343352.

Almost surely, 2507408372 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 507408372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (664599936).

507408372 is an abundant number, since it is smaller than the sum of its proper divisors (821791500).

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

507408372 is a wasteful number, since it uses less digits than its factorization.

507408372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1829 (or 1824 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 507408372 is about 22525.7268917121. The cubic root of 507408372 is about 797.6013423229.

The spelling of 507408372 in words is "five hundred seven million, four hundred eight thousand, three hundred seventy-two".

Divisors: 1 2 3 4 6 9 12 18 31 36 62 93 124 186 279 307 372 558 614 921 1116 1228 1481 1842 2763 2962 3684 4443 5526 5924 8886 9517 11052 13329 17772 19034 26658 28551 38068 45911 53316 57102 85653 91822 114204 137733 171306 183644 275466 342612 413199 454667 550932 826398 909334 1364001 1652796 1818668 2728002 4092003 5456004 8184006 14094677 16368012 28189354 42284031 56378708 84568062 126852093 169136124 253704186 507408372