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70190219021 = 13171283247547
BaseRepresentation
bin100000101011110101…
…0011011111100001101
320201011200021120022112
41001113222123330031
52122222144002041
652124523553405
75033244006026
oct1012752337415
9221150246275
1070190219021
112784960447a
121172a68b865
1368079889a0
14357bdadc4d
151c5c186deb
hex1057a9bf0d

70190219021 has 16 divisors (see below), whose sum is σ = 80098611264. Its totient is φ = 60931962624.

The previous prime is 70190219017. The next prime is 70190219027. The reversal of 70190219021 is 12091209107.

It is not a de Polignac number, because 70190219021 - 22 = 70190219017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70190219027) 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, 159770 + ... + 407316.

It is an arithmetic number, because the mean of its divisors is an integer number (5006163204).

Almost surely, 270190219021 is an apocalyptic number.

It is an amenable number.

70190219021 is a deficient number, since it is larger than the sum of its proper divisors (9908392243).

70190219021 is a wasteful number, since it uses less digits than its factorization.

70190219021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248860.

The product of its (nonzero) digits is 2268, while the sum is 32.

The spelling of 70190219021 in words is "seventy billion, one hundred ninety million, two hundred nineteen thousand, twenty-one".

Divisors: 1 13 17 221 1283 16679 21811 247547 283543 3218111 4208299 54707887 317602801 4128836413 5399247617 70190219021