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131300001 = 3371993491
BaseRepresentation
bin1111101001101…
…11101010100001
3100011001201202000
413310313222201
5232103100001
621010114213
73153013560
oct764675241
9304051660
10131300001
116812a6a8
1237b7b969
1321282411
141361bbd7
15b7d8a86
hex7d37aa1

131300001 has 32 divisors (see below), whose sum is σ = 223488000. Its totient is φ = 74630160.

The previous prime is 131299997. The next prime is 131300047. The reversal of 131300001 is 100003131.

It is not a de Polignac number, because 131300001 - 22 = 131299997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (131302001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35866 + ... + 39356.

It is an arithmetic number, because the mean of its divisors is an integer number (6984000).

Almost surely, 2131300001 is an apocalyptic number.

It is an amenable number.

131300001 is a deficient number, since it is larger than the sum of its proper divisors (92187999).

131300001 is a wasteful number, since it uses less digits than its factorization.

131300001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3706 (or 3700 counting only the distinct ones).

The product of its (nonzero) digits is 9, while the sum is 9.

The square root of 131300001 is about 11458.6212521402. The cubic root of 131300001 is about 508.2627046068.

Adding to 131300001 its reverse (100003131), we get a palindrome (231303132).

The spelling of 131300001 in words is "one hundred thirty-one million, three hundred thousand, one".

Divisors: 1 3 7 9 21 27 63 189 199 597 1393 1791 3491 4179 5373 10473 12537 24437 31419 37611 73311 94257 219933 659799 694709 2084127 4862963 6252381 14588889 18757143 43766667 131300001