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72842932 = 22233125541
BaseRepresentation
bin1000101011101…
…11111010110100
312002001210201101
410111313322310
5122121433212
611121135444
71543104031
oct425677264
9162053641
1072842932
1138132a78
122048a584
1312125836
149962388
1565dd157
hex4577eb4

72842932 has 24 divisors (see below), whose sum is σ = 137313792. Its totient is φ = 33712800.

The previous prime is 72842923. The next prime is 72842969. The reversal of 72842932 is 23924827.

It is a junction number, because it is equal to n+sod(n) for n = 72842891 and 72842900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9919 + ... + 15622.

It is an arithmetic number, because the mean of its divisors is an integer number (5721408).

Almost surely, 272842932 is an apocalyptic number.

It is an amenable number.

72842932 is a deficient number, since it is larger than the sum of its proper divisors (64470860).

72842932 is a wasteful number, since it uses less digits than its factorization.

72842932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25599 (or 25597 counting only the distinct ones).

The product of its digits is 48384, while the sum is 37.

The square root of 72842932 is about 8534.8070862791. The cubic root of 72842932 is about 417.6339599052.

It can be divided in two parts, 728 and 42932, that added together give a triangular number (43660 = T295).

The spelling of 72842932 in words is "seventy-two million, eight hundred forty-two thousand, nine hundred thirty-two".

Divisors: 1 2 4 23 31 46 62 92 124 713 1426 2852 25541 51082 102164 587443 791771 1174886 1583542 2349772 3167084 18210733 36421466 72842932