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313233101 = 1372286373
BaseRepresentation
bin10010101010111…
…000111011001101
3210211101220000222
4102222320323031
51120141424401
651025401125
710522303016
oct2252707315
9724356028
10313233101
111508a2735
1288a991a5
134cb8213c
142d85a00d
151c774c1b
hex12ab8ecd

313233101 has 4 divisors (see below), whose sum is σ = 315519612. Its totient is φ = 310946592.

The previous prime is 313233077. The next prime is 313233131. The reversal of 313233101 is 101332313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 101332313 = 853911867.

It can be written as a sum of positive squares in 2 ways, for example, as 85192900 + 228040201 = 9230^2 + 15101^2 .

It is a cyclic number.

It is not a de Polignac number, because 313233101 - 226 = 246124237 is a prime.

It is a super-2 number, since 2×3132331012 = 196229951124152402, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 313233101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313233131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1143050 + ... + 1143323.

It is an arithmetic number, because the mean of its divisors is an integer number (78879903).

Almost surely, 2313233101 is an apocalyptic number.

It is an amenable number.

313233101 is a deficient number, since it is larger than the sum of its proper divisors (2286511).

313233101 is a wasteful number, since it uses less digits than its factorization.

313233101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2286510.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 313233101 is about 17698.3926106299. The cubic root of 313233101 is about 679.1346410048.

Adding to 313233101 its reverse (101332313), we get a palindrome (414565414).

The spelling of 313233101 in words is "three hundred thirteen million, two hundred thirty-three thousand, one hundred one".

Divisors: 1 137 2286373 313233101