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1163230164 = 2232160720107
BaseRepresentation
bin100010101010101…
…0111101111010100
310000001211012210200
41011111113233110
54340241331124
6311232020500
740553202405
oct10525275724
93001735720
101163230164
11547682048
12285691730
13156cbbc95
14b06bb9ac
156c1c5bc9
hex45557bd4

1163230164 has 36 divisors (see below), whose sum is σ = 2942363424. Its totient is φ = 387482832.

The previous prime is 1163230163. The next prime is 1163230169. The reversal of 1163230164 is 4610323611.

1163230164 is a `hidden beast` number, since 11 + 632 + 3 + 0 + 16 + 4 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1163230163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47799 + ... + 67905.

Almost surely, 21163230164 is an apocalyptic number.

It is an amenable number.

1163230164 is an abundant number, since it is smaller than the sum of its proper divisors (1779133260).

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

1163230164 is a wasteful number, since it uses less digits than its factorization.

1163230164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21724 (or 21719 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 1163230164 is about 34106.1602060390. The cubic root of 1163230164 is about 1051.6919551362.

Adding to 1163230164 its reverse (4610323611), we get a palindrome (5773553775).

The spelling of 1163230164 in words is "one billion, one hundred sixty-three million, two hundred thirty thousand, one hundred sixty-four".

Divisors: 1 2 3 4 6 9 12 18 36 1607 3214 4821 6428 9642 14463 19284 20107 28926 40214 57852 60321 80428 120642 180963 241284 361926 723852 32311949 64623898 96935847 129247796 193871694 290807541 387743388 581615082 1163230164