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145313402 = 21323242999
BaseRepresentation
bin10001010100101…
…00111001111010
3101010102200111212
420222110321322
5244200012102
622230323122
73413100143
oct1052247172
9333380455
10145313402
1175031123
12407b94a2
132414a980
1415428aca
15cb55c52
hex8a94e7a

145313402 has 16 divisors (see below), whose sum is σ = 244944000. Its totient is φ = 64151472.

The previous prime is 145313353. The next prime is 145313417. The reversal of 145313402 is 204313541.

145313402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1453134022 = 42231969601627208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

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, 120902 + ... + 122097.

It is an arithmetic number, because the mean of its divisors is an integer number (15309000).

Almost surely, 2145313402 is an apocalyptic number.

145313402 is a deficient number, since it is larger than the sum of its proper divisors (99630598).

145313402 is a wasteful number, since it uses less digits than its factorization.

145313402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243037.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 145313402 is about 12054.6008644003. The cubic root of 145313402 is about 525.7370171654.

Adding to 145313402 its reverse (204313541), we get a palindrome (349626943).

The spelling of 145313402 in words is "one hundred forty-five million, three hundred thirteen thousand, four hundred two".

Divisors: 1 2 13 23 26 46 299 598 242999 485998 3158987 5588977 6317974 11177954 72656701 145313402