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120433431 = 3173232049
BaseRepresentation
bin1110010110110…
…10101100010111
322101121122121110
413023122230113
5221312332211
615541150103
72661444606
oct713325427
9271548543
10120433431
1161a88468
12343bb333
131bc492b1
1411dcda3d
15a88dea6
hex72dab17

120433431 has 8 divisors (see below), whose sum is σ = 161506800. Its totient is φ = 79824512.

The previous prime is 120433427. The next prime is 120433447. The reversal of 120433431 is 134334021.

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 120433431 - 22 = 120433427 is a prime.

It is a super-2 number, since 2×1204334312 = 29008422604863522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120433398 and 120433407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120433421) 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, 115506 + ... + 116543.

It is an arithmetic number, because the mean of its divisors is an integer number (20188350).

Almost surely, 2120433431 is an apocalyptic number.

120433431 is a deficient number, since it is larger than the sum of its proper divisors (41073369).

120433431 is a wasteful number, since it uses less digits than its factorization.

120433431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232225.

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

The square root of 120433431 is about 10974.2166463033. The cubic root of 120433431 is about 493.8355528514.

Adding to 120433431 its reverse (134334021), we get a palindrome (254767452).

The spelling of 120433431 in words is "one hundred twenty million, four hundred thirty-three thousand, four hundred thirty-one".

Divisors: 1 3 173 519 232049 696147 40144477 120433431