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145500850 = 252111371931
BaseRepresentation
bin10001010110000…
…10101010110010
3101010210012122101
420223002222302
5244222011400
622234331014
73414510505
oct1053025262
9333705571
10145500850
1175149a40
1240889a6a
13241b50a1
141547713c
15cb9156a
hex8ac2ab2

145500850 has 48 divisors (see below), whose sum is σ = 297543456. Its totient is φ = 52496000.

The previous prime is 145500821. The next prime is 145500877. The reversal of 145500850 is 58005541.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74385 + ... + 76315.

It is an arithmetic number, because the mean of its divisors is an integer number (6198822).

Almost surely, 2145500850 is an apocalyptic number.

145500850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145500850 is an abundant number, since it is smaller than the sum of its proper divisors (152042606).

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

145500850 is a wasteful number, since it uses less digits than its factorization.

145500850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2091 (or 2086 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 28.

The square root of 145500850 is about 12062.3733153969. The cubic root of 145500850 is about 525.9629793662.

The spelling of 145500850 in words is "one hundred forty-five million, five hundred thousand, eight hundred fifty".

Divisors: 1 2 5 10 11 22 25 50 55 110 137 274 275 550 685 1370 1507 1931 3014 3425 3862 6850 7535 9655 15070 19310 21241 37675 42482 48275 75350 96550 106205 212410 264547 529094 531025 1062050 1322735 2645470 2910017 5820034 6613675 13227350 14550085 29100170 72750425 145500850