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145246756 = 2237981397
BaseRepresentation
bin10001010100001…
…00101000100100
3101010022022002111
420222010220210
5244140344011
622225050404
73412401634
oct1052045044
9333268074
10145246756
1174a96046
1240786a04
1324126535
141540c6c4
15cb41121
hex8a84a24

145246756 has 12 divisors (see below), whose sum is σ = 261051868. Its totient is φ = 70660512.

The previous prime is 145246741. The next prime is 145246757. The reversal of 145246756 is 657642541.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 125798656 + 19448100 = 11216^2 + 4410^2 .

It is not an unprimeable number, because it can be changed into a prime (145246757) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 490551 + ... + 490846.

Almost surely, 2145246756 is an apocalyptic number.

It is an amenable number.

145246756 is a deficient number, since it is larger than the sum of its proper divisors (115805112).

145246756 is a wasteful number, since it uses less digits than its factorization.

145246756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981438 (or 981436 counting only the distinct ones).

The product of its digits is 201600, while the sum is 40.

The square root of 145246756 is about 12051.8362086447. The cubic root of 145246756 is about 525.6566308492.

The spelling of 145246756 in words is "one hundred forty-five million, two hundred forty-six thousand, seven hundred fifty-six".

Divisors: 1 2 4 37 74 148 981397 1962794 3925588 36311689 72623378 145246756