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145953700 = 22521459537
BaseRepresentation
bin10001011001100…
…01001110100100
3101011122012211121
420230301032210
5244331004300
622252143324
73421404664
oct1054611644
9334565747
10145953700
11754291a2
1240a67b44
1324313249
14155541a4
15cc3081a
hex8b313a4

145953700 has 18 divisors (see below), whose sum is σ = 316719746. Its totient is φ = 58381440.

The previous prime is 145953683. The next prime is 145953701. The reversal of 145953700 is 7359541.

It can be written as a sum of positive squares in 3 ways, for example, as 17040384 + 128913316 = 4128^2 + 11354^2 .

It is not an unprimeable number, because it can be changed into a prime (145953701) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 729669 + ... + 729868.

Almost surely, 2145953700 is an apocalyptic number.

145953700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145953700 is an abundant number, since it is smaller than the sum of its proper divisors (170766046).

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

145953700 is a wasteful number, since it uses less digits than its factorization.

145953700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1459551 (or 1459544 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 145953700 is about 12081.1299140436. The cubic root of 145953700 is about 526.5080750571.

The spelling of 145953700 in words is "one hundred forty-five million, nine hundred fifty-three thousand, seven hundred".

Divisors: 1 2 4 5 10 20 25 50 100 1459537 2919074 5838148 7297685 14595370 29190740 36488425 72976850 145953700