Search a number
-
+
103100231521 = 7111713185859
BaseRepresentation
bin110000000000101000…
…0001010111101100001
3100212010020021102101101
41200001100022331201
53142122124402041
6115210311434401
710306630336240
oct1400120127541
9325106242341
10103100231521
113a7a7435a11
1217b94085a01
139950bb8c71
144dc0ab8957
152a364cbb31
hex180140af61

103100231521 has 8 divisors (see below), whose sum is σ = 117934331840. Its totient is φ = 88292505168.

The previous prime is 103100231501. The next prime is 103100231537. The reversal of 103100231521 is 125132001301.

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

It is not a de Polignac number, because 103100231521 - 29 = 103100231009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103100231501) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6585111 + ... + 6600748.

It is an arithmetic number, because the mean of its divisors is an integer number (14741791480).

Almost surely, 2103100231521 is an apocalyptic number.

It is an amenable number.

103100231521 is a deficient number, since it is larger than the sum of its proper divisors (14834100319).

103100231521 is a wasteful number, since it uses less digits than its factorization.

103100231521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13186983.

The product of its (nonzero) digits is 180, while the sum is 19.

Adding to 103100231521 its reverse (125132001301), we get a palindrome (228232232822).

The spelling of 103100231521 in words is "one hundred three billion, one hundred million, two hundred thirty-one thousand, five hundred twenty-one".

Divisors: 1 7 1117 7819 13185859 92301013 14728604503 103100231521