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145052692 = 221491991223
BaseRepresentation
bin10001010010101…
…01010000010100
3101002221102212221
420221111100110
5244113141232
622220552124
73410633101
oct1051252024
9332842787
10145052692
1174973264
12406b2644
13240890c5
141539baa8
15cb03897
hex8a55414

145052692 has 24 divisors (see below), whose sum is σ = 257040000. Its totient is φ = 71618976.

The previous prime is 145052681. The next prime is 145052701. The reversal of 145052692 is 296250541.

It is a happy number.

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, 117993 + ... + 119215.

It is an arithmetic number, because the mean of its divisors is an integer number (10710000).

Almost surely, 2145052692 is an apocalyptic number.

It is an amenable number.

145052692 is a deficient number, since it is larger than the sum of its proper divisors (111987308).

145052692 is a wasteful number, since it uses less digits than its factorization.

145052692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1575 (or 1573 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 145052692 is about 12043.7822962722. The cubic root of 145052692 is about 525.4224167958.

The spelling of 145052692 in words is "one hundred forty-five million, fifty-two thousand, six hundred ninety-two".

Divisors: 1 2 4 149 199 298 398 596 796 1223 2446 4892 29651 59302 118604 182227 243377 364454 486754 728908 973508 36263173 72526346 145052692