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315717030 = 232517206351
BaseRepresentation
bin10010110100010…
…111010110100110
3211000002002100100
4102310113112212
51121310421110
651154524530
710552356546
oct2264272646
9730062310
10315717030
11152239972
1289896746
1350541915
142dd05326
151cab5bc0
hex12d175a6

315717030 has 48 divisors (see below), whose sum is σ = 869154624. Its totient is φ = 79238400.

The previous prime is 315717023. The next prime is 315717107. The reversal of 315717030 is 30717513.

It is a junction number, because it is equal to n+sod(n) for n = 315716985 and 315717003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 101646 + ... + 104705.

It is an arithmetic number, because the mean of its divisors is an integer number (18107388).

Almost surely, 2315717030 is an apocalyptic number.

315717030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

315717030 is an abundant number, since it is smaller than the sum of its proper divisors (553437594).

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

315717030 is a wasteful number, since it uses less digits than its factorization.

315717030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206381 (or 206378 counting only the distinct ones).

The product of its (nonzero) digits is 2205, while the sum is 27.

The square root of 315717030 is about 17768.4278989448. The cubic root of 315717030 is about 680.9250889544.

The spelling of 315717030 in words is "three hundred fifteen million, seven hundred seventeen thousand, thirty".

Divisors: 1 2 3 5 6 9 10 15 17 18 30 34 45 51 85 90 102 153 170 255 306 510 765 1530 206351 412702 619053 1031755 1238106 1857159 2063510 3095265 3507967 3714318 6190530 7015934 9285795 10523901 17539835 18571590 21047802 31571703 35079670 52619505 63143406 105239010 157858515 315717030