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23155065152 = 261761348889
BaseRepresentation
bin10101100100001001…
…100100000101000000
32012202201100011222122
4111210021210011000
5334410144041102
614345353223412
71446542543402
oct254411440500
965681304878
1023155065152
11990248118a
1245a2701b68
1322502426ab
141199334b72
15907c400a2
hex564264140

23155065152 has 56 divisors (see below), whose sum is σ = 49448877480. Its totient is φ = 10717839360.

The previous prime is 23155065139. The next prime is 23155065163. The reversal of 23155065152 is 25156055132.

It can be written as a sum of positive squares in 4 ways, for example, as 7268416 + 23147796736 = 2696^2 + 152144^2 .

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 108077 + ... + 240812.

Almost surely, 223155065152 is an apocalyptic number.

It is an amenable number.

23155065152 is an abundant number, since it is smaller than the sum of its proper divisors (26293812328).

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

23155065152 is a wasteful number, since it uses less digits than its factorization.

23155065152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348979 (or 348969 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 35.

The spelling of 23155065152 in words is "twenty-three billion, one hundred fifty-five million, sixty-five thousand, one hundred fifty-two".

Divisors: 1 2 4 8 16 17 32 34 61 64 68 122 136 244 272 488 544 976 1037 1088 1952 2074 3904 4148 8296 16592 33184 66368 348889 697778 1395556 2791112 5582224 5931113 11164448 11862226 21282229 22328896 23724452 42564458 47448904 85128916 94897808 170257832 189795616 340515664 361797893 379591232 681031328 723595786 1362062656 1447191572 2894383144 5788766288 11577532576 23155065152