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145859479 = 61239199
BaseRepresentation
bin10001011000110…
…10001110010111
3101011110102120221
420230122032113
5244320000404
622250135211
73420533203
oct1054321627
9334412527
10145859479
1175374427
1240a21507
13242ac3ac
141552bb03
15cc12954
hex8b1a397

145859479 has 6 divisors (see below), whose sum is σ = 148293600. Its totient is φ = 143464680.

The previous prime is 145859477. The next prime is 145859501. The reversal of 145859479 is 974958541.

145859479 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 145859479 - 21 = 145859477 is a prime.

It is a super-2 number, since 2×1458594792 = 42549975228302882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145859477) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15879 + ... + 23320.

It is an arithmetic number, because the mean of its divisors is an integer number (24715600).

Almost surely, 2145859479 is an apocalyptic number.

145859479 is a deficient number, since it is larger than the sum of its proper divisors (2434121).

145859479 is an frugal number, since it uses more digits than its factorization.

145859479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39321 (or 39260 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 52.

The square root of 145859479 is about 12077.2297734207. The cubic root of 145859479 is about 526.3947541979.

The spelling of 145859479 in words is "one hundred forty-five million, eight hundred fifty-nine thousand, four hundred seventy-nine".

Divisors: 1 61 3721 39199 2391139 145859479