Search a number
-
+
256072350 = 235210611609
BaseRepresentation
bin11110100001101…
…01101010011110
3122211211211020010
433100311222132
51011023303400
641224304050
76226402422
oct1720655236
9584754203
10256072350
11121600a46
1271912026
134108a601
142601ab82
1517733450
hexf435a9e

256072350 has 48 divisors (see below), whose sum is σ = 636053040. Its totient is φ = 68179200.

The previous prime is 256072339. The next prime is 256072379. The reversal of 256072350 is 53270652.

It is a super-3 number, since 3×2560723503 (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 158346 + ... + 159954.

It is an arithmetic number, because the mean of its divisors is an integer number (13251105).

Almost surely, 2256072350 is an apocalyptic number.

256072350 is an abundant number, since it is smaller than the sum of its proper divisors (379980690).

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

256072350 is a wasteful number, since it uses less digits than its factorization.

256072350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2685 (or 2680 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 30.

The square root of 256072350 is about 16002.2607777776. The cubic root of 256072350 is about 635.0202320625.

The spelling of 256072350 in words is "two hundred fifty-six million, seventy-two thousand, three hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 75 150 1061 1609 2122 3183 3218 4827 5305 6366 8045 9654 10610 15915 16090 24135 26525 31830 40225 48270 53050 79575 80450 120675 159150 241350 1707149 3414298 5121447 8535745 10242894 17071490 25607235 42678725 51214470 85357450 128036175 256072350