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315132052 = 2278783013
BaseRepresentation
bin10010110010001…
…000100010010100
3210221222100220111
4102302020202110
51121133211202
651134212404
710544402224
oct2262104224
9727870814
10315132052
1115197a414
1289654104
1350398591
142dbd2084
151c9ec6d7
hex12c88894

315132052 has 6 divisors (see below), whose sum is σ = 551481098. Its totient is φ = 157566024.

The previous prime is 315132049. The next prime is 315132053. The reversal of 315132052 is 250231513.

It can be written as a sum of positive squares in only one way, i.e., 241926916 + 73205136 = 15554^2 + 8556^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315132053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39391503 + ... + 39391510.

Almost surely, 2315132052 is an apocalyptic number.

It is an amenable number.

315132052 is a deficient number, since it is larger than the sum of its proper divisors (236349046).

315132052 is a wasteful number, since it uses less digits than its factorization.

315132052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78783017 (or 78783015 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 315132052 is about 17751.9591031525. The cubic root of 315132052 is about 680.5042770396.

Adding to 315132052 its reverse (250231513), we get a palindrome (565363565).

It can be divided in two parts, 3 and 15132052, that multiplied together give a triangular number (45396156 = T9528).

The spelling of 315132052 in words is "three hundred fifteen million, one hundred thirty-two thousand, fifty-two".

Divisors: 1 2 4 78783013 157566026 315132052