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72913914 = 23217232351
BaseRepresentation
bin1000101100010…
…01001111111010
312002012102002100
410112021033322
5122131221124
611122444230
71543521003
oct426111772
9162172070
1072913914
1138181337
1220503676
131214bc38
1499801aa
1566041c9
hex45893fa

72913914 has 24 divisors (see below), whose sum is σ = 158139072. Its totient is φ = 24280200.

The previous prime is 72913913. The next prime is 72913927. The reversal of 72913914 is 41931927.

It is not an unprimeable number, because it can be changed into a prime (72913913) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29839 + ... + 32189.

It is an arithmetic number, because the mean of its divisors is an integer number (6589128).

Almost surely, 272913914 is an apocalyptic number.

72913914 is an abundant number, since it is smaller than the sum of its proper divisors (85225158).

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

72913914 is a wasteful number, since it uses less digits than its factorization.

72913914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4082 (or 4079 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 72913914 is about 8538.9644571224. The cubic root of 72913914 is about 417.7695707283.

The spelling of 72913914 in words is "seventy-two million, nine hundred thirteen thousand, nine hundred fourteen".

Divisors: 1 2 3 6 9 18 1723 2351 3446 4702 5169 7053 10338 14106 15507 21159 31014 42318 4050773 8101546 12152319 24304638 36456957 72913914