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775242942 = 23177600421
BaseRepresentation
bin101110001101010…
…100010010111110
32000000202102101120
4232031110102332
53041430233232
6204532051410
725132312335
oct5615242276
92000672346
10775242942
11368671551
12197763b66
13c47c5446
1474d62d1c
15480d692c
hex2e3544be

775242942 has 16 divisors (see below), whose sum is σ = 1641691152. Its totient is φ = 243213440.

The previous prime is 775242931. The next prime is 775242953. The reversal of 775242942 is 249242577.

It is an interprime number because it is at equal distance from previous prime (775242931) and next prime (775242953).

It is a junction number, because it is equal to n+sod(n) for n = 775242894 and 775242903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3800109 + ... + 3800312.

It is an arithmetic number, because the mean of its divisors is an integer number (102605697).

Almost surely, 2775242942 is an apocalyptic number.

775242942 is an abundant number, since it is smaller than the sum of its proper divisors (866448210).

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

775242942 is a wasteful number, since it uses less digits than its factorization.

775242942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7600443.

The product of its digits is 282240, while the sum is 42.

The square root of 775242942 is about 27843.1848393821. The cubic root of 775242942 is about 918.6412448620.

The spelling of 775242942 in words is "seven hundred seventy-five million, two hundred forty-two thousand, nine hundred forty-two".

Divisors: 1 2 3 6 17 34 51 102 7600421 15200842 22801263 45602526 129207157 258414314 387621471 775242942