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120431401 = 220354667
BaseRepresentation
bin1110010110110…
…10001100101001
322101121112211021
413023122030221
5221312301101
615541132441
72661435646
oct713321451
9271545737
10120431401
1161a86992
12343ba121
131bc483ac
1411dccdcd
15a88d5a1
hex72da329

120431401 has 4 divisors (see below), whose sum is σ = 120488272. Its totient is φ = 120374532.

The previous prime is 120431359. The next prime is 120431413. The reversal of 120431401 is 104134021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 104134021 = 372814433.

It is a cyclic number.

It is not a de Polignac number, because 120431401 - 27 = 120431273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120431431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25131 + ... + 29536.

It is an arithmetic number, because the mean of its divisors is an integer number (30122068).

Almost surely, 2120431401 is an apocalyptic number.

It is an amenable number.

120431401 is a deficient number, since it is larger than the sum of its proper divisors (56871).

120431401 is an equidigital number, since it uses as much as digits as its factorization.

120431401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56870.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 120431401 is about 10974.1241563963. The cubic root of 120431401 is about 493.8327781739.

Adding to 120431401 its reverse (104134021), we get a palindrome (224565422).

The spelling of 120431401 in words is "one hundred twenty million, four hundred thirty-one thousand, four hundred one".

Divisors: 1 2203 54667 120431401