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1145924660 = 225531081061
BaseRepresentation
bin100010001001101…
…0110110000110100
32221212021000010002
41010103112300310
54321324042120
6305413050432
740253125136
oct10423266064
92855230102
101145924660
11538932181
1227b926a18
1315354013a
14ac295056
156a908375
hex444d6c34

1145924660 has 24 divisors (see below), whose sum is σ = 2451848616. Its totient is φ = 449720960.

The previous prime is 1145924657. The next prime is 1145924693. The reversal of 1145924660 is 664295411.

It can be written as a sum of positive squares in 4 ways, for example, as 293985316 + 851939344 = 17146^2 + 29188^2 .

It is a super-2 number, since 2×11459246602 = 2626286652792231200, which contains 22 as substring.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 539471 + ... + 541590.

It is an arithmetic number, because the mean of its divisors is an integer number (102160359).

Almost surely, 21145924660 is an apocalyptic number.

1145924660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1145924660 is an abundant number, since it is smaller than the sum of its proper divisors (1305923956).

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

1145924660 is a wasteful number, since it uses less digits than its factorization.

1145924660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081123 (or 1081121 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 1145924660 is about 33851.5089767059. The cubic root of 1145924660 is about 1046.4504967358.

The spelling of 1145924660 in words is "one billion, one hundred forty-five million, nine hundred twenty-four thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 53 106 212 265 530 1060 1081061 2162122 4324244 5405305 10810610 21621220 57296233 114592466 229184932 286481165 572962330 1145924660