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3750000645372 = 223312500053781
BaseRepresentation
bin110110100100011101011…
…101001101010011111100
3111021111101222210122002120
4312210131131031103330
5442420000131122442
611550420532122540
7534633340361652
oct66443535152374
914244358718076
103750000645372
111216403669293
12506937766450
13212814c04527
14cd702a58dd2
156782d26c4ec
hex3691d74d4fc

3750000645372 has 12 divisors (see below), whose sum is σ = 8750001505896. Its totient is φ = 1250000215120.

The previous prime is 3750000645367. The next prime is 3750000645379. The reversal of 3750000645372 is 2735460000573.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3750000645379) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156250026879 + ... + 156250026902.

It is an arithmetic number, because the mean of its divisors is an integer number (729166792158).

Almost surely, 23750000645372 is an apocalyptic number.

It is an amenable number.

3750000645372 is an abundant number, since it is smaller than the sum of its proper divisors (5000000860524).

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

3750000645372 is a wasteful number, since it uses less digits than its factorization.

3750000645372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312500053788 (or 312500053786 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 42.

The spelling of 3750000645372 in words is "three trillion, seven hundred fifty billion, six hundred forty-five thousand, three hundred seventy-two".

Divisors: 1 2 3 4 6 12 312500053781 625000107562 937500161343 1250000215124 1875000322686 3750000645372