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145564630 = 2529501947
BaseRepresentation
bin10001010110100…
…10001111010110
3101010220110010121
420223102033112
5244231032010
622235542154
73415164451
oct1053221726
9333813117
10145564630
1175192952
12408ba95a
1324208123
1415492498
15cba53da
hex8ad23d6

145564630 has 16 divisors (see below), whose sum is σ = 271051920. Its totient is φ = 56217952.

The previous prime is 145564613. The next prime is 145564633. The reversal of 145564630 is 36465541.

145564630 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145564633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250684 + ... + 251263.

It is an arithmetic number, because the mean of its divisors is an integer number (16940745).

Almost surely, 2145564630 is an apocalyptic number.

145564630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145564630 is a deficient number, since it is larger than the sum of its proper divisors (125487290).

145564630 is a wasteful number, since it uses less digits than its factorization.

145564630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501983.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 145564630 is about 12065.0167840745. The cubic root of 145564630 is about 526.0398197384.

The spelling of 145564630 in words is "one hundred forty-five million, five hundred sixty-four thousand, six hundred thirty".

Divisors: 1 2 5 10 29 58 145 290 501947 1003894 2509735 5019470 14556463 29112926 72782315 145564630