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30762942 = 2375091439
BaseRepresentation
bin111010101011…
…0011110111110
32010212220211020
41311112132332
530333403232
63015205010
7522323610
oct165263676
963786736
1030762942
1116401721
12a376766
1364b1332
14412adb0
152a79e2c
hex1d567be

30762942 has 32 divisors (see below), whose sum is σ = 70502400. Its totient is φ = 8766048.

The previous prime is 30762889. The next prime is 30762959. The reversal of 30762942 is 24926703.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20659 + ... + 22097.

It is an arithmetic number, because the mean of its divisors is an integer number (2203200).

Almost surely, 230762942 is an apocalyptic number.

30762942 is an abundant number, since it is smaller than the sum of its proper divisors (39739458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30762942 is a wasteful number, since it uses less digits than its factorization.

30762942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1960.

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 30762942 is about 5546.4350712868. The cubic root of 30762942 is about 313.3352741191.

The spelling of 30762942 in words is "thirty million, seven hundred sixty-two thousand, nine hundred forty-two".

Divisors: 1 2 3 6 7 14 21 42 509 1018 1439 1527 2878 3054 3563 4317 7126 8634 10073 10689 20146 21378 30219 60438 732451 1464902 2197353 4394706 5127157 10254314 15381471 30762942