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145430392 = 2318178799
BaseRepresentation
bin10001010101100…
…01011101111000
3101010122121222211
420222301131320
5244212233032
622233024504
73414065212
oct1052613570
9333577884
10145430392
1175101008
1240855134
132418bcb3
14154595b2
15cb7a747
hex8ab1778

145430392 has 8 divisors (see below), whose sum is σ = 272682000. Its totient is φ = 72715192.

The previous prime is 145430371. The next prime is 145430413. The reversal of 145430392 is 293034541.

145430392 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (145430371) and next prime (145430413).

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1454303922 = 42299997834547328, 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 as a sum of consecutive naturals, namely, 9089392 + ... + 9089407.

It is an arithmetic number, because the mean of its divisors is an integer number (34085250).

Almost surely, 2145430392 is an apocalyptic number.

It is an amenable number.

145430392 is a deficient number, since it is larger than the sum of its proper divisors (127251608).

145430392 is a wasteful number, since it uses less digits than its factorization.

145430392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18178805 (or 18178801 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 145430392 is about 12059.4523922109. The cubic root of 145430392 is about 525.8780674156.

The spelling of 145430392 in words is "one hundred forty-five million, four hundred thirty thousand, three hundred ninety-two".

Divisors: 1 2 4 8 18178799 36357598 72715196 145430392