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120334431 = 375730211
BaseRepresentation
bin1110010110000…
…10100001011111
322101102121210210
413023002201133
5221301200211
615535103503
72660553150
oct713024137
9271377723
10120334431
1161a20048
1234371b93
131bc13209
1411da5927
15a86e9a6
hex72c285f

120334431 has 8 divisors (see below), whose sum is σ = 183366784. Its totient is φ = 68762520.

The previous prime is 120334399. The next prime is 120334439. The reversal of 120334431 is 134433021.

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

It is not a de Polignac number, because 120334431 - 25 = 120334399 is a prime.

It is a super-2 number, since 2×1203344312 = 28960750568187522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 5730211 = 120334431 / (1 + 2 + 0 + 3 + 3 + 4 + 4 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120334398 and 120334407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120334439) 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, 2865085 + ... + 2865126.

It is an arithmetic number, because the mean of its divisors is an integer number (22920848).

Almost surely, 2120334431 is an apocalyptic number.

120334431 is a deficient number, since it is larger than the sum of its proper divisors (63032353).

120334431 is an equidigital number, since it uses as much as digits as its factorization.

120334431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5730221.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 120334431 is about 10969.7051464476. The cubic root of 120334431 is about 493.7001997308.

Adding to 120334431 its reverse (134433021), we get a palindrome (254767452).

The spelling of 120334431 in words is "one hundred twenty million, three hundred thirty-four thousand, four hundred thirty-one".

Divisors: 1 3 7 21 5730211 17190633 40111477 120334431