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94121215025 = 5212037312773
BaseRepresentation
bin101011110101000001…
…1111100010000110001
322222221110200010022212
41113222003330100301
53020230012340100
6111123320141505
76541261061465
oct1275203742061
9288843603285
1094121215025
1136a09a76a22
12162a9007895
138b4c8a4956
1447ac3a64a5
1526ad097635
hex15ea0fc431

94121215025 has 12 divisors (see below), whose sum is σ = 116720375772. Its totient is φ = 75290475840.

The previous prime is 94121215007. The next prime is 94121215033. The reversal of 94121215025 is 52051212149.

It can be written as a sum of positive squares in 6 ways, for example, as 49616671504 + 44504543521 = 222748^2 + 210961^2 .

It is not a de Polignac number, because 94121215025 - 28 = 94121214769 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 94121214982 and 94121215000.

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, 144539 + ... + 457311.

It is an arithmetic number, because the mean of its divisors is an integer number (9726697981).

Almost surely, 294121215025 is an apocalyptic number.

It is an amenable number.

94121215025 is a deficient number, since it is larger than the sum of its proper divisors (22599160747).

94121215025 is a wasteful number, since it uses less digits than its factorization.

94121215025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324820 (or 324815 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 32.

The spelling of 94121215025 in words is "ninety-four billion, one hundred twenty-one million, two hundred fifteen thousand, twenty-five".

Divisors: 1 5 25 12037 60185 300925 312773 1563865 7819325 3764848601 18824243005 94121215025