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2153155488 = 253112388651
BaseRepresentation
bin1000000001010110…
…1000101110100000
312120001112122001120
42000111220232200
513402201433423
6553353332240
7104233343151
oct20025505640
95501478046
102153155488
11a05444650
12501107080
1328410c603
14165d65928
15c9066ee3
hex80568ba0

2153155488 has 96 divisors (see below), whose sum is σ = 6434007552. Its totient is φ = 624096000.

The previous prime is 2153155481. The next prime is 2153155517. The reversal of 2153155488 is 8845513512.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (2153155481) 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, 20038 + ... + 68613.

It is an arithmetic number, because the mean of its divisors is an integer number (67020912).

Almost surely, 22153155488 is an apocalyptic number.

It is an amenable number.

2153155488 is an abundant number, since it is smaller than the sum of its proper divisors (4280852064).

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

2153155488 is a wasteful number, since it uses less digits than its factorization.

2153155488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88698 (or 88690 counting only the distinct ones).

The product of its digits is 192000, while the sum is 42.

The square root of 2153155488 is about 46402.1065039078. The cubic root of 2153155488 is about 1291.2939939160.

It can be divided in two parts, 2153 and 155488, that added together give a triangular number (157641 = T561).

The spelling of 2153155488 in words is "two billion, one hundred fifty-three million, one hundred fifty-five thousand, four hundred eighty-eight".

Divisors: 1 2 3 4 6 8 11 12 16 22 23 24 32 33 44 46 48 66 69 88 92 96 132 138 176 184 253 264 276 352 368 506 528 552 736 759 1012 1056 1104 1518 2024 2208 3036 4048 6072 8096 12144 24288 88651 177302 265953 354604 531906 709208 975161 1063812 1418416 1950322 2038973 2127624 2836832 2925483 3900644 4077946 4255248 5850966 6116919 7801288 8155892 8510496 11701932 12233838 15602576 16311784 22428703 23403864 24467676 31205152 32623568 44857406 46807728 48935352 65247136 67286109 89714812 93615456 97870704 134572218 179429624 195741408 269144436 358859248 538288872 717718496 1076577744 2153155488