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100540131 = 3157213461
BaseRepresentation
bin1011111111000…
…01111011100011
321000011222010120
411333201323203
5201214241011
613550531323
72330401626
oct577417343
9230158116
10100540131
115183031a
1229806b43
1317aa2603
14d4d1dbd
158c5ea06
hex5fe1ee3

100540131 has 8 divisors (see below), whose sum is σ = 134907984. Its totient is φ = 66599520.

The previous prime is 100540117. The next prime is 100540151. The reversal of 100540131 is 131045001.

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

It is not a de Polignac number, because 100540131 - 26 = 100540067 is a prime.

It is a super-2 number, since 2×1005401312 = 20216635882994322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 100540131.

It is not an unprimeable number, because it can be changed into a prime (100540151) 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, 106260 + ... + 107201.

It is an arithmetic number, because the mean of its divisors is an integer number (16863498).

Almost surely, 2100540131 is an apocalyptic number.

100540131 is a deficient number, since it is larger than the sum of its proper divisors (34367853).

100540131 is a wasteful number, since it uses less digits than its factorization.

100540131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213621.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 100540131 is about 10026.9701804683. The cubic root of 100540131 is about 464.9930719282.

Adding to 100540131 its reverse (131045001), we get a palindrome (231585132).

The spelling of 100540131 in words is "one hundred million, five hundred forty thousand, one hundred thirty-one".

Divisors: 1 3 157 471 213461 640383 33513377 100540131