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145151974 = 2117192927
BaseRepresentation
bin10001010011011…
…01011111100110
3101010010111002001
420221231133212
5244124330344
622223035514
73411525412
oct1051553746
9333114061
10145151974
1174a30910
124073bb9a
13240c2356
14153c5d42
15cb22ed4
hex8a6d7e6

145151974 has 16 divisors (see below), whose sum is σ = 240869376. Its totient is φ = 65048200.

The previous prime is 145151971. The next prime is 145151987. The reversal of 145151974 is 479151541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145151971) 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, 44902 + ... + 48025.

It is an arithmetic number, because the mean of its divisors is an integer number (15054336).

Almost surely, 2145151974 is an apocalyptic number.

145151974 is a deficient number, since it is larger than the sum of its proper divisors (95717402).

145151974 is a wasteful number, since it uses less digits than its factorization.

145151974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93011.

The product of its digits is 25200, while the sum is 37.

The square root of 145151974 is about 12047.9033030648. The cubic root of 145151974 is about 525.5422654077.

The spelling of 145151974 in words is "one hundred forty-five million, one hundred fifty-one thousand, nine hundred seventy-four".

Divisors: 1 2 11 22 71 142 781 1562 92927 185854 1022197 2044394 6597817 13195634 72575987 145151974