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1204100131 = 13811711411
BaseRepresentation
bin100011111000101…
…0001110000100011
310002220201121212011
41013301101300203
54431222201011
6315252013351
741560453003
oct10761216043
93086647764
101204100131
11568757283
12297301257
131625cb7b0
14b5cba003
1570a9a621
hex47c51c23

1204100131 has 8 divisors (see below), whose sum is σ = 1296996624. Its totient is φ = 1111242720.

The previous prime is 1204100119. The next prime is 1204100159. The reversal of 1204100131 is 1310014021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1204100131 is a prime.

It is a super-2 number, since 2×12041001312 = 2899714250948434322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1204100101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99816 + ... + 111226.

It is an arithmetic number, because the mean of its divisors is an integer number (162124578).

Almost surely, 21204100131 is an apocalyptic number.

1204100131 is a deficient number, since it is larger than the sum of its proper divisors (92896493).

1204100131 is a wasteful number, since it uses less digits than its factorization.

1204100131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19541.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1204100131 is about 34700.1459795200. The cubic root of 1204100131 is about 1063.8674820709.

Adding to 1204100131 its reverse (1310014021), we get a palindrome (2514114152).

The spelling of 1204100131 in words is "one billion, two hundred four million, one hundred thousand, one hundred thirty-one".

Divisors: 1 13 8117 11411 105521 148343 92623087 1204100131