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145270142 = 2137530183
BaseRepresentation
bin10001010100010…
…10010101111110
3101010100111011122
420222022111332
5244142121032
622225350542
73412530053
oct1052122576
9333314148
10145270142
1175001676
1240798452
1324134084
141541702a
15cb48012
hex8a8a57e

145270142 has 8 divisors (see below), whose sum is σ = 219496176. Its totient is φ = 72104752.

The previous prime is 145270133. The next prime is 145270159. The reversal of 145270142 is 241072541.

145270142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1452701422 = 42206828313400328, 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 3 ways as a sum of consecutive naturals, for example, 264818 + ... + 265365.

It is an arithmetic number, because the mean of its divisors is an integer number (27437022).

Almost surely, 2145270142 is an apocalyptic number.

145270142 is a deficient number, since it is larger than the sum of its proper divisors (74226034).

145270142 is a wasteful number, since it uses less digits than its factorization.

145270142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530322.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 145270142 is about 12052.8063951928. The cubic root of 145270142 is about 525.6848411093.

The spelling of 145270142 in words is "one hundred forty-five million, two hundred seventy thousand, one hundred forty-two".

Divisors: 1 2 137 274 530183 1060366 72635071 145270142