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215148372552960 = 28357112331636489
BaseRepresentation
bin110000111010110100100010…
…010100011110110100000000
31001012202222120000010002001020
4300322310202110132310000
5211144442331333143320
62041325444201505440
763213646144432050
oct6072644224366400
91035688500102036
10215148372552960
1162609a04443a20
12201692427a2280
1393085348350a2
143b1b345a8d560
1519d17824b1940
hexc3ad2251ed00

215148372552960 has 576 divisors, whose sum is σ = 893928760381440. Its totient is φ = 42762408099840.

The previous prime is 215148372552853. The next prime is 215148372552979. The reversal of 215148372552960 is 69255273841512.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a junction number, because it is equal to n+sod(n) for n = 215148372552894 and 215148372552903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9017605 + ... + 22618884.

It is an arithmetic number, because the mean of its divisors is an integer number (1551959653440).

It is a 1-persistent number, because it is pandigital, but 2⋅215148372552960 = 430296745105920 is not.

Almost surely, 2215148372552960 is an apocalyptic number.

215148372552960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215148372552960 is an abundant number, since it is smaller than the sum of its proper divisors (678780387828480).

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

215148372552960 is a wasteful number, since it uses less digits than its factorization.

215148372552960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31636554 (or 31636540 counting only the distinct ones).

The product of its (nonzero) digits is 36288000, while the sum is 60.

The spelling of 215148372552960 in words is "two hundred fifteen trillion, one hundred forty-eight billion, three hundred seventy-two million, five hundred fifty-two thousand, nine hundred sixty".