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145344524 = 221310925643
BaseRepresentation
bin10001010100111…
…00100000001100
3101010111021012112
420222130200030
5244202011044
622231123152
73413256653
oct1052344014
9333437175
10145344524
1175052546
12408134b8
132415bba0
141543619a
15cb6009e
hex8a9c80c

145344524 has 24 divisors (see below), whose sum is σ = 276442320. Its totient is φ = 66464064.

The previous prime is 145344503. The next prime is 145344527. The reversal of 145344524 is 425443541.

It is a super-2 number, since 2×1453445242 = 42250061313573152, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145344527) 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, 7154 + ... + 18489.

It is an arithmetic number, because the mean of its divisors is an integer number (11518430).

Almost surely, 2145344524 is an apocalyptic number.

It is an amenable number.

145344524 is a deficient number, since it is larger than the sum of its proper divisors (131097796).

145344524 is a wasteful number, since it uses less digits than its factorization.

145344524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25769 (or 25767 counting only the distinct ones).

The product of its digits is 38400, while the sum is 32.

The square root of 145344524 is about 12055.8916717097. The cubic root of 145344524 is about 525.7745471277.

The spelling of 145344524 in words is "one hundred forty-five million, three hundred forty-four thousand, five hundred twenty-four".

Divisors: 1 2 4 13 26 52 109 218 436 1417 2834 5668 25643 51286 102572 333359 666718 1333436 2795087 5590174 11180348 36336131 72672262 145344524