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313742247 = 37213273173
BaseRepresentation
bin10010101100110…
…101001110100111
3210212100202110020
4102230311032213
51120304222442
651044330223
710526523300
oct2254651647
9725322406
10313742247
11151110215
12890a3973
134ccccb00
142d94d7a7
151c8259ec
hex12b353a7

313742247 has 72 divisors (see below), whose sum is σ = 537238224. Its totient is φ = 162279936.

The previous prime is 313742207. The next prime is 313742279. The reversal of 313742247 is 742247313.

It is not a de Polignac number, because 313742247 - 27 = 313742119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313742207) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1813453 + ... + 1813625.

It is an arithmetic number, because the mean of its divisors is an integer number (7461642).

Almost surely, 2313742247 is an apocalyptic number.

313742247 is a deficient number, since it is larger than the sum of its proper divisors (223495977).

313742247 is a wasteful number, since it uses less digits than its factorization.

313742247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289 (or 269 counting only the distinct ones).

The product of its digits is 28224, while the sum is 33.

The square root of 313742247 is about 17712.7707318759. The cubic root of 313742247 is about 679.5024091884.

The spelling of 313742247 in words is "three hundred thirteen million, seven hundred forty-two thousand, two hundred forty-seven".

Divisors: 1 3 7 13 21 39 49 73 91 147 169 173 219 273 507 511 519 637 949 1183 1211 1533 1911 2249 2847 3549 3577 3633 6643 6747 8281 8477 10731 12337 12629 15743 19929 24843 25431 29237 37011 37887 46501 47229 86359 87711 88403 110201 139503 164177 204659 259077 265209 330603 492531 604513 613977 618821 1149239 1432613 1813539 1856463 2134301 3447717 4297839 6402903 8044673 14940107 24134019 44820321 104580749 313742247