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315215153130 = 23546512259121
BaseRepresentation
bin1001001011001000100…
…10011000011111101010
31010010121212220220001010
410211210102120133222
520131030034400010
6400450254404350
731526216410353
oct4454422303752
91103555826033
10315215153130
11111755811019
1251110b006b6
13239561091b7
1411383b70d2a
1582ed322620
hex49644987ea

315215153130 has 32 divisors (see below), whose sum is σ = 756679359168. Its totient is φ = 84039264000.

The previous prime is 315215153063. The next prime is 315215153137. The reversal of 315215153130 is 31351512513.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (315215153137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 990031 + ... + 1269090.

It is an arithmetic number, because the mean of its divisors is an integer number (23646229974).

Almost surely, 2315215153130 is an apocalyptic number.

315215153130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

315215153130 is an abundant number, since it is smaller than the sum of its proper divisors (441464206038).

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

315215153130 is a wasteful number, since it uses less digits than its factorization.

315215153130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2263782.

The product of its (nonzero) digits is 6750, while the sum is 30.

Adding to 315215153130 its reverse (31351512513), we get a palindrome (346566665643).

The spelling of 315215153130 in words is "three hundred fifteen billion, two hundred fifteen million, one hundred fifty-three thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 4651 9302 13953 23255 27906 46510 69765 139530 2259121 4518242 6777363 11295605 13554726 22591210 33886815 67773630 10507171771 21014343542 31521515313 52535858855 63043030626 105071717710 157607576565 315215153130