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1445526164 = 221663217307
BaseRepresentation
bin101011000101000…
…1111101010010100
310201202000100010002
41112022033222110
510430023314124
6355234350432
750551524665
oct12612175224
93652010102
101445526164
11681a64225
1234412b418
131a062b734
14d9da336c
1586d890ae
hex5628fa94

1445526164 has 12 divisors (see below), whose sum is σ = 2531203584. Its totient is φ = 722325144.

The previous prime is 1445526143. The next prime is 1445526169. The reversal of 1445526164 is 4616255441.

It is a happy number.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445526169) 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, 102002 + ... + 115305.

It is an arithmetic number, because the mean of its divisors is an integer number (210933632).

Almost surely, 21445526164 is an apocalyptic number.

It is an amenable number.

1445526164 is a deficient number, since it is larger than the sum of its proper divisors (1085677420).

1445526164 is a wasteful number, since it uses less digits than its factorization.

1445526164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218974 (or 218972 counting only the distinct ones).

The product of its digits is 115200, while the sum is 38.

The square root of 1445526164 is about 38020.0758021338. The cubic root of 1445526164 is about 1130.6859239070.

The spelling of 1445526164 in words is "one billion, four hundred forty-five million, five hundred twenty-six thousand, one hundred sixty-four".

Divisors: 1 2 4 1663 3326 6652 217307 434614 869228 361381541 722763082 1445526164