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315012052640261 = 2404347981273067
BaseRepresentation
bin100011110100000000111010…
…1011111110110001000000101
31112022100212011120110112022102
41013220001311133312020011
5312242124140433442021
63033550312243441445
7123231604216505444
oct10750016537661005
91468325146415272
10315012052640261
1191410952406019
122b3b7543086285
13106a068065a1a2
1457b0943d0cd5b
1526642be19100b
hex11e80757f6205

315012052640261 has 8 divisors (see below), whose sum is σ = 315032873970144. Its totient is φ = 314991232000560.

The previous prime is 315012052640251. The next prime is 315012052640281. The reversal of 315012052640261 is 162046250210513.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-315012052640261 is a prime.

It is a super-2 number, since 2×3150120526402612 (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315012052640221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1153470650 + ... + 1153743716.

It is an arithmetic number, because the mean of its divisors is an integer number (39379109246268).

Almost surely, 2315012052640261 is an apocalyptic number.

It is an amenable number.

315012052640261 is a deficient number, since it is larger than the sum of its proper divisors (20821329883).

315012052640261 is a wasteful number, since it uses less digits than its factorization.

315012052640261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345091.

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 315012052640261 in words is "three hundred fifteen trillion, twelve billion, fifty-two million, six hundred forty thousand, two hundred sixty-one".

Divisors: 1 24043 47981 273067 1153607183 6565349881 13102027727 315012052640261