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1230198048 = 253231137791
BaseRepresentation
bin100100101010011…
…0101010100100000
310011201211112110200
41021110311110200
510004412314143
6322023225200
742325340142
oct11124652440
93151745420
101230198048
11581462002
122a3ba8200
13167b38651
14b9550c92
15730031d3
hex49535520

1230198048 has 72 divisors (see below), whose sum is σ = 3611252736. Its totient is φ = 396835200.

The previous prime is 1230198037. The next prime is 1230198097. The reversal of 1230198048 is 8408910321.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59968 + ... + 77823.

It is an arithmetic number, because the mean of its divisors is an integer number (50156288).

Almost surely, 21230198048 is an apocalyptic number.

1230198048 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1230198048 is an abundant number, since it is smaller than the sum of its proper divisors (2381054688).

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

1230198048 is a wasteful number, since it uses less digits than its factorization.

1230198048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137838 (or 137827 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 1230198048 is about 35074.1792206176. The cubic root of 1230198048 is about 1071.4987725126.

The spelling of 1230198048 in words is "one billion, two hundred thirty million, one hundred ninety-eight thousand, forty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 31 32 36 48 62 72 93 96 124 144 186 248 279 288 372 496 558 744 992 1116 1488 2232 2976 4464 8928 137791 275582 413373 551164 826746 1102328 1240119 1653492 2204656 2480238 3306984 4271521 4409312 4960476 6613968 8543042 9920952 12814563 13227936 17086084 19841904 25629126 34172168 38443689 39683808 51258252 68344336 76887378 102516504 136688672 153774756 205033008 307549512 410066016 615099024 1230198048