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131001030304 = 2510140532497
BaseRepresentation
bin111101000000001000…
…1010001011010100000
3110112010200112212001021
41322000101101122200
54121242230432204
6140103034415224
712315220246024
oct1720021213240
9415120485037
10131001030304
1150614737001
122147bb91514
13c4793b2961
1464aa404384
15361ab9a154
hex1e804516a0

131001030304 has 24 divisors (see below), whose sum is σ = 260461832148. Its totient is φ = 64851993600.

The previous prime is 131001030283. The next prime is 131001030323. The reversal of 131001030304 is 403030100131.

It can be written as a sum of positive squares in 2 ways, for example, as 130219939600 + 781090704 = 360860^2 + 27948^2 .

It is a super-2 number, since 2×1310010303042 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20263017 + ... + 20269480.

Almost surely, 2131001030304 is an apocalyptic number.

It is an amenable number.

131001030304 is a deficient number, since it is larger than the sum of its proper divisors (129460801844).

131001030304 is a wasteful number, since it uses less digits than its factorization.

131001030304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40532608 (or 40532600 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 131001030304 its reverse (403030100131), we get a palindrome (534031130435).

The spelling of 131001030304 in words is "one hundred thirty-one billion, one million, thirty thousand, three hundred four".

Divisors: 1 2 4 8 16 32 101 202 404 808 1616 3232 40532497 81064994 162129988 324259976 648519952 1297039904 4093782197 8187564394 16375128788 32750257576 65500515152 131001030304