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145890200 = 2352729451
BaseRepresentation
bin10001011001000…
…01101110011000
3101011111222201202
420230201232120
5244321441300
622250533332
73421021601
oct1054415630
9334458652
10145890200
1175395515
1240a37248
13242c0381
1415538da8
15cc1bad5
hex8b21b98

145890200 has 24 divisors (see below), whose sum is σ = 339195180. Its totient is φ = 58356000.

The previous prime is 145890187. The next prime is 145890211. The reversal of 145890200 is 2098541.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 364526 + ... + 364925.

Almost surely, 2145890200 is an apocalyptic number.

145890200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145890200 is an abundant number, since it is smaller than the sum of its proper divisors (193304980).

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

145890200 is a wasteful number, since it uses less digits than its factorization.

145890200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729467 (or 729458 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 145890200 is about 12078.5015626939. The cubic root of 145890200 is about 526.4317081167.

The spelling of 145890200 in words is "one hundred forty-five million, eight hundred ninety thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 729451 1458902 2917804 3647255 5835608 7294510 14589020 18236275 29178040 36472550 72945100 145890200