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134001431 = 298835233
BaseRepresentation
bin1111111110010…
…11001100010111
3100100010222101222
413333023030113
5233301021211
621144040555
73214664504
oct777131427
9310128358
10134001431
1169705293
1238a6315b
13219b9bb5
1413b224ab
15bb6e1db
hex7fcb317

134001431 has 8 divisors (see below), whose sum is σ = 138805680. Its totient is φ = 129209472.

The previous prime is 134001409. The next prime is 134001487. The reversal of 134001431 is 134100431.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-134001431 is a prime.

It is a super-2 number, since 2×1340014312 = 35912767020095522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134001401) 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, 22991 + ... + 28223.

It is an arithmetic number, because the mean of its divisors is an integer number (17350710).

Almost surely, 2134001431 is an apocalyptic number.

134001431 is a deficient number, since it is larger than the sum of its proper divisors (4804249).

134001431 is an equidigital number, since it uses as much as digits as its factorization.

134001431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6145.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 134001431 is about 11575.8987124111. The cubic root of 134001431 is about 511.7248162658.

Adding to 134001431 its reverse (134100431), we get a palindrome (268101862).

The spelling of 134001431 in words is "one hundred thirty-four million, one thousand, four hundred thirty-one".

Divisors: 1 29 883 5233 25607 151757 4620739 134001431