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255493972 = 22103727853
BaseRepresentation
bin11110011101010…
…00011101010100
3122210202102211201
433032220131110
51010401301342
641204042244
76221443246
oct1716503524
9583672751
10255493972
11121246448
1271693384
1340c17286
1425d0a096
151766bdb7
hexf3a8754

255493972 has 24 divisors (see below), whose sum is σ = 452606336. Its totient is φ = 126184608.

The previous prime is 255493967. The next prime is 255494009. The reversal of 255493972 is 279394552.

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, 299098 + ... + 299950.

Almost surely, 2255493972 is an apocalyptic number.

It is an amenable number.

255493972 is a deficient number, since it is larger than the sum of its proper divisors (197112364).

255493972 is a wasteful number, since it uses less digits than its factorization.

255493972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1687 (or 1685 counting only the distinct ones).

The product of its digits is 680400, while the sum is 46.

The square root of 255493972 is about 15984.1788028037. The cubic root of 255493972 is about 634.5417753559.

The spelling of 255493972 in words is "two hundred fifty-five million, four hundred ninety-three thousand, nine hundred seventy-two".

Divisors: 1 2 4 103 206 412 727 853 1454 1706 2908 3412 74881 87859 149762 175718 299524 351436 620131 1240262 2480524 63873493 127746986 255493972