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3215218216025 = 52245407524063
BaseRepresentation
bin101110110010011001111…
…100001000110001011001
3102101101001002022102202002
4232302121330020301121
5410134231330403100
610501014552450345
7451202050623614
oct56623174106131
912341032272662
103215218216025
11102a625953912
1243b16a0a99b5
131a426995c81a
14b18901a317b
155897dc342d5
hex2ec99f08c59

3215218216025 has 12 divisors (see below), whose sum is σ = 3986894441472. Its totient is φ = 2572159183440.

The previous prime is 3215218215953. The next prime is 3215218216033. The reversal of 3215218216025 is 5206128125123.

3215218216025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3215218216025 - 224 = 3215201438809 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3215218216025.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5873144 + ... + 6397206.

It is an arithmetic number, because the mean of its divisors is an integer number (332241203456).

Almost surely, 23215218216025 is an apocalyptic number.

It is an amenable number.

3215218216025 is a deficient number, since it is larger than the sum of its proper divisors (771676225447).

3215218216025 is a wasteful number, since it uses less digits than its factorization.

3215218216025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769480 (or 769475 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 38.

The spelling of 3215218216025 in words is "three trillion, two hundred fifteen billion, two hundred eighteen million, two hundred sixteen thousand, twenty-five".

Divisors: 1 5 25 245407 524063 1227035 2620315 6135175 13101575 128608728641 643043643205 3215218216025