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131430134 = 2115974097
BaseRepresentation
bin1111101010101…
…11011011110110
3100011022100020202
413311113123312
5232121231014
621013000502
73154065143
oct765273366
9304270222
10131430134
1168209450
1238023132
13212c9714
14136533ca
15b8123de
hex7d576f6

131430134 has 8 divisors (see below), whose sum is σ = 215067528. Its totient is φ = 59740960.

The previous prime is 131430121. The next prime is 131430137. The reversal of 131430134 is 431034131.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131430137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2987027 + ... + 2987070.

It is an arithmetic number, because the mean of its divisors is an integer number (26883441).

Almost surely, 2131430134 is an apocalyptic number.

131430134 is a deficient number, since it is larger than the sum of its proper divisors (83637394).

131430134 is a wasteful number, since it uses less digits than its factorization.

131430134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5974110.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 131430134 is about 11464.2982340831. The cubic root of 131430134 is about 508.4305642432.

Adding to 131430134 its reverse (431034131), we get a palindrome (562464265).

The spelling of 131430134 in words is "one hundred thirty-one million, four hundred thirty thousand, one hundred thirty-four".

Divisors: 1 2 11 22 5974097 11948194 65715067 131430134