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145874430 = 232513124679
BaseRepresentation
bin10001011000111…
…01110111111110
3101011111012002200
420230131313332
5244320440210
622250332330
73420624612
oct1054356776
9334435080
10145874430
1175384689
1240a2a0a6
13242b6140
1415533342
15cc170c0
hex8b1ddfe

145874430 has 48 divisors (see below), whose sum is σ = 408451680. Its totient is φ = 35907264.

The previous prime is 145874411. The next prime is 145874453. The reversal of 145874430 is 34478541.

145874430 is a `hidden beast` number, since 1 + 4 + 587 + 44 + 30 = 666.

It is a congruent number.

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, 61170 + ... + 63509.

It is an arithmetic number, because the mean of its divisors is an integer number (8509410).

Almost surely, 2145874430 is an apocalyptic number.

145874430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145874430 is an abundant number, since it is smaller than the sum of its proper divisors (262577250).

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

145874430 is a wasteful number, since it uses less digits than its factorization.

145874430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124705 (or 124702 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 145874430 is about 12077.8487322867. The cubic root of 145874430 is about 526.4127392228.

The spelling of 145874430 in words is "one hundred forty-five million, eight hundred seventy-four thousand, four hundred thirty".

Divisors: 1 2 3 5 6 9 10 13 15 18 26 30 39 45 65 78 90 117 130 195 234 390 585 1170 124679 249358 374037 623395 748074 1122111 1246790 1620827 1870185 2244222 3241654 3740370 4862481 5610555 8104135 9724962 11221110 14587443 16208270 24312405 29174886 48624810 72937215 145874430