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315929742 = 233110915583
BaseRepresentation
bin10010110101001…
…011010010001110
3211000110220010120
4102311023102032
51121334222432
651203245410
710554233652
oct2265132216
9730426116
10315929742
11152374767
1289979866
13505b769b
142dd5ca62
151cb08c2c
hex12d4b48e

315929742 has 32 divisors (see below), whose sum is σ = 658268160. Its totient is φ = 100971360.

The previous prime is 315929707. The next prime is 315929753. The reversal of 315929742 is 247929513.

It is a junction number, because it is equal to n+sod(n) for n = 315929694 and 315929703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12483 + ... + 28065.

It is an arithmetic number, because the mean of its divisors is an integer number (20570880).

Almost surely, 2315929742 is an apocalyptic number.

315929742 is an abundant number, since it is smaller than the sum of its proper divisors (342338418).

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

315929742 is a wasteful number, since it uses less digits than its factorization.

315929742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15728.

The product of its digits is 136080, while the sum is 42.

The square root of 315929742 is about 17774.4125641327. The cubic root of 315929742 is about 681.0779773613.

The spelling of 315929742 in words is "three hundred fifteen million, nine hundred twenty-nine thousand, seven hundred forty-two".

Divisors: 1 2 3 6 31 62 93 109 186 218 327 654 3379 6758 10137 15583 20274 31166 46749 93498 483073 966146 1449219 1698547 2898438 3397094 5095641 10191282 52654957 105309914 157964871 315929742