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120431407 = 7113912203
BaseRepresentation
bin1110010110110…
…10001100101111
322101121112211111
413023122030233
5221312301112
615541132451
72661435655
oct713321457
9271545744
10120431407
1161a86998
12343ba127
131bc483b5
1411dccdd5
15a88d5a7
hex72da32f

120431407 has 8 divisors (see below), whose sum is σ = 123016320. Its totient is φ = 117871320.

The previous prime is 120431359. The next prime is 120431413. The reversal of 120431407 is 704134021.

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

It is a cyclic number.

It is not a de Polignac number, because 120431407 - 27 = 120431279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120431477) 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, 3768 + ... + 15970.

It is an arithmetic number, because the mean of its divisors is an integer number (15377040).

Almost surely, 2120431407 is an apocalyptic number.

120431407 is a deficient number, since it is larger than the sum of its proper divisors (2584913).

120431407 is a wasteful number, since it uses less digits than its factorization.

120431407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12413.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 120431407 is about 10974.1244297666. The cubic root of 120431407 is about 493.8327863749.

Adding to 120431407 its reverse (704134021), we get a palindrome (824565428).

The spelling of 120431407 in words is "one hundred twenty million, four hundred thirty-one thousand, four hundred seven".

Divisors: 1 71 139 9869 12203 866413 1696217 120431407