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23379745 = 537432939
BaseRepresentation
bin101100100101…
…1111100100001
31121222210222111
41121023330201
521441122440
62153035321
7402503344
oct131137441
947883874
1023379745
1112219604
1279b5b41
134ac788c
14316845b
1520bc4ea
hex164bf21

23379745 has 16 divisors (see below), whose sum is σ = 29494080. Its totient is φ = 17769024.

The previous prime is 23379721. The next prime is 23379751. The reversal of 23379745 is 54797332.

It is a cyclic number.

It is not a de Polignac number, because 23379745 - 213 = 23371553 is a prime.

It is a super-2 number, since 2×233797452 = 1093224952530050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23379698 and 23379707.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6486 + ... + 9424.

It is an arithmetic number, because the mean of its divisors is an integer number (1843380).

Almost surely, 223379745 is an apocalyptic number.

It is an amenable number.

23379745 is a deficient number, since it is larger than the sum of its proper divisors (6114335).

23379745 is a wasteful number, since it uses less digits than its factorization.

23379745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3024.

The product of its digits is 158760, while the sum is 40.

The square root of 23379745 is about 4835.2605927706. The cubic root of 23379745 is about 285.9432989458.

The spelling of 23379745 in words is "twenty-three million, three hundred seventy-nine thousand, seven hundred forty-five".

Divisors: 1 5 37 43 185 215 1591 2939 7955 14695 108743 126377 543715 631885 4675949 23379745