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145051188 = 22333293631
BaseRepresentation
bin10001010010101…
…00111000110100
3101002221100211020
420221110320310
5244113114223
622220541140
73410625522
oct1051247064
9332840736
10145051188
1174972117
12406b17b0
1324088509
141539b312
15cb031e3
hex8a54e34

145051188 has 24 divisors (see below), whose sum is σ = 338647680. Its totient is φ = 48322560.

The previous prime is 145051177. The next prime is 145051199. The reversal of 145051188 is 881150541.

It is an interprime number because it is at equal distance from previous prime (145051177) and next prime (145051199).

It is a super-2 number, since 2×1450511882 = 42079694280422688, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38133 + ... + 41763.

It is an arithmetic number, because the mean of its divisors is an integer number (14110320).

Almost surely, 2145051188 is an apocalyptic number.

It is an amenable number.

145051188 is an abundant number, since it is smaller than the sum of its proper divisors (193596492).

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

145051188 is a wasteful number, since it uses less digits than its factorization.

145051188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6967 (or 6965 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 33.

The square root of 145051188 is about 12043.7198572534. The cubic root of 145051188 is about 525.4206008165.

The spelling of 145051188 in words is "one hundred forty-five million, fifty-one thousand, one hundred eighty-eight".

Divisors: 1 2 3 4 6 12 3329 3631 6658 7262 9987 10893 13316 14524 19974 21786 39948 43572 12087599 24175198 36262797 48350396 72525594 145051188