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497507428 = 221167168761
BaseRepresentation
bin11101101001110…
…101110001100100
31021200010222220001
4131221311301210
52004330214203
6121211151044
715220512655
oct3551656144
91250128801
10497507428
11235914770
1211a745484
137c0c16c2
144a10752c
152da2491d
hex1da75c64

497507428 has 24 divisors (see below), whose sum is σ = 963968544. Its totient is φ = 222763200.

The previous prime is 497507393. The next prime is 497507429. The reversal of 497507428 is 824705794.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (497507429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81433 + ... + 87328.

It is an arithmetic number, because the mean of its divisors is an integer number (40165356).

Almost surely, 2497507428 is an apocalyptic number.

It is an amenable number.

497507428 is a deficient number, since it is larger than the sum of its proper divisors (466461116).

497507428 is a wasteful number, since it uses less digits than its factorization.

497507428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168843 (or 168841 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 46.

The square root of 497507428 is about 22304.8745345048. The cubic root of 497507428 is about 792.3794244473.

The spelling of 497507428 in words is "four hundred ninety-seven million, five hundred seven thousand, four hundred twenty-eight".

Divisors: 1 2 4 11 22 44 67 134 268 737 1474 2948 168761 337522 675044 1856371 3712742 7425484 11306987 22613974 45227948 124376857 248753714 497507428