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1230495039220 = 22561524751961
BaseRepresentation
bin10001111001111111001…
…110000011111011110100
311100122010022111121111111
4101321333032003323310
5130130023212223340
62341140455044404
7154620546154636
oct21717716037364
94318108447444
101230495039220
11434939409447
1217a58a370704
138c05c3b8c05
14437b05d6a56
152201beecaea
hex11e7f383ef4

1230495039220 has 12 divisors (see below), whose sum is σ = 2584039582404. Its totient is φ = 492198015680.

The previous prime is 1230495039211. The next prime is 1230495039223. The reversal of 1230495039220 is 229305940321.

It can be written as a sum of positive squares in 2 ways, for example, as 905565398544 + 324929640676 = 951612^2 + 570026^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230495039223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30762375961 + ... + 30762376000.

It is an arithmetic number, because the mean of its divisors is an integer number (215336631867).

Almost surely, 21230495039220 is an apocalyptic number.

1230495039220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230495039220 is an abundant number, since it is smaller than the sum of its proper divisors (1353544543184).

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

1230495039220 is a wasteful number, since it uses less digits than its factorization.

1230495039220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61524751970 (or 61524751968 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 40.

The spelling of 1230495039220 in words is "one trillion, two hundred thirty billion, four hundred ninety-five million, thirty-nine thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 61524751961 123049503922 246099007844 307623759805 615247519610 1230495039220