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242472793 = 312252313
BaseRepresentation
bin11100111001111…
…01011101011001
3121220020220010211
432130331131121
5444033112133
640021011121
76002661523
oct1634753531
9556226124
10242472793
11114962442
1269253aa1
133b308534
14242baa13
1516448bcd
hexe73d759

242472793 has 6 divisors (see below), whose sum is σ = 250547802. Its totient is φ = 234650160.

The previous prime is 242472779. The next prime is 242472809. The reversal of 242472793 is 397274242.

It can be written as a sum of positive squares in only one way, i.e., 159971904 + 82500889 = 12648^2 + 9083^2 .

It is not a de Polignac number, because 242472793 - 25 = 242472761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242472733) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 125196 + ... + 127117.

It is an arithmetic number, because the mean of its divisors is an integer number (41757967).

Almost surely, 2242472793 is an apocalyptic number.

It is an amenable number.

242472793 is a deficient number, since it is larger than the sum of its proper divisors (8075009).

242472793 is an equidigital number, since it uses as much as digits as its factorization.

242472793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252375 (or 252344 counting only the distinct ones).

The product of its digits is 169344, while the sum is 40.

The square root of 242472793 is about 15571.5379137708. The cubic root of 242472793 is about 623.5735301308.

The spelling of 242472793 in words is "two hundred forty-two million, four hundred seventy-two thousand, seven hundred ninety-three".

Divisors: 1 31 961 252313 7821703 242472793