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2167190028 = 2232463130021
BaseRepresentation
bin1000000100101100…
…1011001000001100
312121000221122211100
42001023023020030
513414300040103
6555014223100
7104463545163
oct20113131014
95530848740
102167190028
11a1235aa43
12505954a90
13286cb4683
14167b7a3da
15ca3da5a3
hex812cb20c

2167190028 has 36 divisors (see below), whose sum is σ = 5490048928. Its totient is φ = 720830880.

The previous prime is 2167190023. The next prime is 2167190033. The reversal of 2167190028 is 8200917612.

It is an interprime number because it is at equal distance from previous prime (2167190023) and next prime (2167190033).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2167189974 and 2167190001.

It is not an unprimeable number, because it can be changed into a prime (2167190023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48343 + ... + 81678.

Almost surely, 22167190028 is an apocalyptic number.

It is an amenable number.

2167190028 is an abundant number, since it is smaller than the sum of its proper divisors (3322858900).

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

2167190028 is a wasteful number, since it uses less digits than its factorization.

2167190028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130494 (or 130489 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 2167190028 is about 46553.0882756450. The cubic root of 2167190028 is about 1294.0935260276.

The spelling of 2167190028 in words is "two billion, one hundred sixty-seven million, one hundred ninety thousand, twenty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 463 926 1389 1852 2778 4167 5556 8334 16668 130021 260042 390063 520084 780126 1170189 1560252 2340378 4680756 60199723 120399446 180599169 240798892 361198338 541797507 722396676 1083595014 2167190028