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23479090 = 2523313789
BaseRepresentation
bin101100110010…
…0001100110010
31122011212020221
41121210030302
522002312330
62155123254
7403366105
oct131441462
948155227
1023479090
1112287208
127a4352a
134b30b6b
14319273c
1520dbb7a
hex1664332

23479090 has 64 divisors (see below), whose sum is σ = 47278080. Its totient is φ = 8363520.

The previous prime is 23479087. The next prime is 23479097. The reversal of 23479090 is 9097432.

It is a super-4 number, since 4×234790904 (a number of 31 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (23479097) 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 31 ways as a sum of consecutive naturals, for example, 263766 + ... + 263854.

It is an arithmetic number, because the mean of its divisors is an integer number (738720).

Almost surely, 223479090 is an apocalyptic number.

23479090 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

23479090 is a wasteful number, since it uses less digits than its factorization.

23479090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 23479090 is about 4845.5226756254. The cubic root of 23479090 is about 286.3477358648.

The spelling of 23479090 in words is "twenty-three million, four hundred seventy-nine thousand, ninety".

Divisors: 1 2 5 10 23 31 37 46 62 74 89 115 155 178 185 230 310 370 445 713 851 890 1147 1426 1702 2047 2294 2759 3293 3565 4094 4255 5518 5735 6586 7130 8510 10235 11470 13795 16465 20470 26381 27590 32930 52762 63457 75739 102083 126914 131905 151478 204166 263810 317285 378695 510415 634570 757390 1020830 2347909 4695818 11739545 23479090