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145993058 = 2531377293
BaseRepresentation
bin10001011001110…
…10110101100010
3101011201012211022
420230322311202
5244333234213
622253045442
73421630511
oct1054726542
9334635738
10145993058
1175455822
1240a86882
1324328133
1415564678
15cc3c308
hex8b3ad62

145993058 has 8 divisors (see below), whose sum is σ = 223121628. Its totient is φ = 71619184.

The previous prime is 145993039. The next prime is 145993079. The reversal of 145993058 is 850399541.

It is a happy number.

145993058 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 145853929 + 139129 = 12077^2 + 373^2 .

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

It is a super-3 number, since 3×1459930583 (a number of 25 digits) contains 333 as substring.

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, 688541 + ... + 688752.

Almost surely, 2145993058 is an apocalyptic number.

145993058 is a deficient number, since it is larger than the sum of its proper divisors (77128570).

145993058 is a wasteful number, since it uses less digits than its factorization.

145993058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1377348.

The product of its (nonzero) digits is 194400, while the sum is 44.

The square root of 145993058 is about 12082.7587081759. The cubic root of 145993058 is about 526.5553970102. Note that the first 3 decimals are identical.

The spelling of 145993058 in words is "one hundred forty-five million, nine hundred ninety-three thousand, fifty-eight".

Divisors: 1 2 53 106 1377293 2754586 72996529 145993058