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145446102 = 23219425281
BaseRepresentation
bin10001010101101…
…01010011010110
3101010200102112200
420222311103112
5244213233402
622233225330
73414162054
oct1052652326
9333612480
10145446102
117511189a
1240862246
13241961a9
14154611d4
15cb8021c
hex8ab54d6

145446102 has 24 divisors (see below), whose sum is σ = 331719960. Its totient is φ = 45930240.

The previous prime is 145446061. The next prime is 145446113. The reversal of 145446102 is 201644541.

145446102 is a `hidden beast` number, since 1 + 4 + 5 + 44 + 610 + 2 = 666.

145446102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 212299 + ... + 212982.

It is an arithmetic number, because the mean of its divisors is an integer number (13821665).

Almost surely, 2145446102 is an apocalyptic number.

145446102 is an abundant number, since it is smaller than the sum of its proper divisors (186273858).

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

145446102 is a wasteful number, since it uses less digits than its factorization.

145446102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425308 (or 425305 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 145446102 is about 12060.1037308972. The cubic root of 145446102 is about 525.8970025842.

The spelling of 145446102 in words is "one hundred forty-five million, four hundred forty-six thousand, one hundred two".

Divisors: 1 2 3 6 9 18 19 38 57 114 171 342 425281 850562 1275843 2551686 3827529 7655058 8080339 16160678 24241017 48482034 72723051 145446102