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255193142 = 21923291983
BaseRepresentation
bin11110011010111…
…11000000110110
3122210012011011212
433031133000312
51010312140032
641153401422
76216051221
oct1715370066
9583164155
10255193142
11121060426
1271569272
1340b40379
1425c6c5b8
151760cbb2
hexf35f036

255193142 has 16 divisors (see below), whose sum is σ = 420456960. Its totient is φ = 115624872.

The previous prime is 255193139. The next prime is 255193153. The reversal of 255193142 is 241391552.

It is a junction number, because it is equal to n+sod(n) for n = 255193099 and 255193108.

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, 145118 + ... + 146865.

It is an arithmetic number, because the mean of its divisors is an integer number (26278560).

Almost surely, 2255193142 is an apocalyptic number.

255193142 is a deficient number, since it is larger than the sum of its proper divisors (165263818).

255193142 is a wasteful number, since it uses less digits than its factorization.

255193142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292027.

The product of its digits is 10800, while the sum is 32.

The square root of 255193142 is about 15974.7657885804. The cubic root of 255193142 is about 634.2926316151.

The spelling of 255193142 in words is "two hundred fifty-five million, one hundred ninety-three thousand, one hundred forty-two".

Divisors: 1 2 19 23 38 46 437 874 291983 583966 5547677 6715609 11095354 13431218 127596571 255193142