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145233460 = 2257261673
BaseRepresentation
bin10001010100000…
…01011000110100
3101010021121212001
420222001120310
5244134432320
622224505044
73412315111
oct1052013064
9333247761
10145233460
1174a87059
124077b184
1324120478
1415407908
15cb3c20a
hex8a81634

145233460 has 12 divisors (see below), whose sum is σ = 304990308. Its totient is φ = 58093376.

The previous prime is 145233449. The next prime is 145233503. The reversal of 145233460 is 64332541.

It can be written as a sum of positive squares in 2 ways, for example, as 31427236 + 113806224 = 5606^2 + 10668^2 .

It is a congruent number.

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, 3630817 + ... + 3630856.

It is an arithmetic number, because the mean of its divisors is an integer number (25415859).

Almost surely, 2145233460 is an apocalyptic number.

145233460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145233460 is an abundant number, since it is smaller than the sum of its proper divisors (159756848).

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

145233460 is a wasteful number, since it uses less digits than its factorization.

145233460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7261682 (or 7261680 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 145233460 is about 12051.2845788322. The cubic root of 145233460 is about 525.6405906887.

The spelling of 145233460 in words is "one hundred forty-five million, two hundred thirty-three thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 7261673 14523346 29046692 36308365 72616730 145233460