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72899376 = 243111011367
BaseRepresentation
bin1000101100001…
…01101100110000
312002011200010220
410112011230300
5122130240001
611122253040
71543430424
oct426055460
9162150126
1072899376
1138171420
12204b7180
1312145434
149978b84
1565eec36
hex4585b30

72899376 has 80 divisors (see below), whose sum is σ = 207629568. Its totient is φ = 21856000.

The previous prime is 72899363. The next prime is 72899377. The reversal of 72899376 is 67399827.

It is not an unprimeable number, because it can be changed into a prime (72899377) 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 15 ways as a sum of consecutive naturals, for example, 52645 + ... + 54011.

Almost surely, 272899376 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72899376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103814784).

72899376 is an abundant number, since it is smaller than the sum of its proper divisors (134730192).

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

72899376 is a wasteful number, since it uses less digits than its factorization.

72899376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1490 (or 1484 counting only the distinct ones).

The product of its digits is 1143072, while the sum is 51.

The square root of 72899376 is about 8538.1131405012. The cubic root of 72899376 is about 417.7418031076.

The spelling of 72899376 in words is "seventy-two million, eight hundred ninety-nine thousand, three hundred seventy-six".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 33 44 48 66 88 101 132 176 202 264 303 404 528 606 808 1111 1212 1367 1616 2222 2424 2734 3333 4101 4444 4848 5468 6666 8202 8888 10936 13332 15037 16404 17776 21872 26664 30074 32808 45111 53328 60148 65616 90222 120296 138067 180444 240592 276134 360888 414201 552268 721776 828402 1104536 1518737 1656804 2209072 3037474 3313608 4556211 6074948 6627216 9112422 12149896 18224844 24299792 36449688 72899376