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1312355230 = 25816716069
BaseRepresentation
bin100111000111000…
…1111001110011110
310101110102112221021
41032032033032132
510141430331410
6334120154354
744343556354
oct11616171636
93343375837
101312355230
116138769aa
123076089ba
1317bb72874
14c64197d4
157a330eda
hex4e38f39e

1312355230 has 16 divisors (see below), whose sum is σ = 2362675680. Its totient is φ = 524845152.

The previous prime is 1312355221. The next prime is 1312355269. The reversal of 1312355230 is 325532131.

It is a junction number, because it is equal to n+sod(n) for n = 1312355195 and 1312355204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73636 + ... + 89704.

It is an arithmetic number, because the mean of its divisors is an integer number (147667230).

Almost surely, 21312355230 is an apocalyptic number.

1312355230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312355230 is a deficient number, since it is larger than the sum of its proper divisors (1050320450).

1312355230 is a wasteful number, since it uses less digits than its factorization.

1312355230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24243.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 1312355230 is about 36226.4437945543. The cubic root of 1312355230 is about 1094.8395280641.

Adding to 1312355230 its reverse (325532131), we get a palindrome (1637887361).

The spelling of 1312355230 in words is "one billion, three hundred twelve million, three hundred fifty-five thousand, two hundred thirty".

Divisors: 1 2 5 10 8167 16069 16334 32138 40835 80345 81670 160690 131235523 262471046 656177615 1312355230