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72914136 = 2333038089
BaseRepresentation
bin1000101100010…
…01010011011000
312002012102101120
410112021103120
5122131223021
611122445240
71543521441
oct426112330
9162172346
1072914136
1138181519
1220503820
131214c079
1499802c8
1566042c6
hex45894d8

72914136 has 16 divisors (see below), whose sum is σ = 182285400. Its totient is φ = 24304704.

The previous prime is 72914131. The next prime is 72914143. The reversal of 72914136 is 63141927.

It is a junction number, because it is equal to n+sod(n) for n = 72914097 and 72914106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72914131) 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 3 ways as a sum of consecutive naturals, for example, 1519021 + ... + 1519068.

Almost surely, 272914136 is an apocalyptic number.

It is an amenable number.

72914136 is an abundant number, since it is smaller than the sum of its proper divisors (109371264).

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

72914136 is a wasteful number, since it uses less digits than its factorization.

72914136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3038098 (or 3038094 counting only the distinct ones).

The product of its digits is 9072, while the sum is 33.

The square root of 72914136 is about 8538.9774563469. The cubic root of 72914136 is about 417.7699947203.

The spelling of 72914136 in words is "seventy-two million, nine hundred fourteen thousand, one hundred thirty-six".

Divisors: 1 2 3 4 6 8 12 24 3038089 6076178 9114267 12152356 18228534 24304712 36457068 72914136