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72876751 = 1134671381
BaseRepresentation
bin1000101100000…
…00001011001111
312002010112002221
410112000023033
5122124024001
611122000211
71543304443
oct426001317
9162115087
1072876751
1138156422
12204a6067
131213804c
149970823
1565e81a1
hex45802cf

72876751 has 8 divisors (see below), whose sum is σ = 73732464. Its totient is φ = 72024960.

The previous prime is 72876733. The next prime is 72876757. The reversal of 72876751 is 15767827.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72876751 - 213 = 72868559 is a prime.

It is a super-2 number, since 2×728767512 = 10622041672632002, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72876698 and 72876707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72876757) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 52081 + ... + 53461.

It is an arithmetic number, because the mean of its divisors is an integer number (9216558).

Almost surely, 272876751 is an apocalyptic number.

72876751 is a deficient number, since it is larger than the sum of its proper divisors (855713).

72876751 is a wasteful number, since it uses less digits than its factorization.

72876751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1961.

The product of its digits is 164640, while the sum is 43.

The square root of 72876751 is about 8536.7880962339. The cubic root of 72876751 is about 417.6985819501.

The spelling of 72876751 in words is "seventy-two million, eight hundred seventy-six thousand, seven hundred fifty-one".

Divisors: 1 113 467 1381 52771 156053 644927 72876751