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72893752 = 239111719
BaseRepresentation
bin1000101100001…
…00010100111000
312002011101102121
410112010110320
5122130100002
611122211024
71543405141
oct426042470
9162141377
1072893752
1138168178
12204b3a74
13121429c9
149976ac8
1565ed237
hex4584538

72893752 has 8 divisors (see below), whose sum is σ = 136675800. Its totient is φ = 36446872.

The previous prime is 72893731. The next prime is 72893761. The reversal of 72893752 is 25739827.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 72893699 and 72893708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4555852 + ... + 4555867.

It is an arithmetic number, because the mean of its divisors is an integer number (17084475).

Almost surely, 272893752 is an apocalyptic number.

It is an amenable number.

72893752 is a deficient number, since it is larger than the sum of its proper divisors (63782048).

72893752 is a wasteful number, since it uses less digits than its factorization.

72893752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9111725 (or 9111721 counting only the distinct ones).

The product of its digits is 211680, while the sum is 43.

The square root of 72893752 is about 8537.7837873771. The cubic root of 72893752 is about 417.7310602615.

The spelling of 72893752 in words is "seventy-two million, eight hundred ninety-three thousand, seven hundred fifty-two".

Divisors: 1 2 4 8 9111719 18223438 36446876 72893752