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145113556 = 22737140071
BaseRepresentation
bin10001010011001…
…00000111010100
3101010001112101011
420221210013110
5244122113211
622222142004
73411305410
oct1051440724
9333045334
10145113556
1174a04a65
1240721904
13240aaa13
14153b5d40
15cb16921
hex8a641d4

145113556 has 24 divisors (see below), whose sum is σ = 298073216. Its totient is φ = 60510240.

The previous prime is 145113517. The next prime is 145113557. The reversal of 145113556 is 655311541.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145113557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69000 + ... + 71071.

Almost surely, 2145113556 is an apocalyptic number.

It is an amenable number.

145113556 is an abundant number, since it is smaller than the sum of its proper divisors (152959660).

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

145113556 is a wasteful number, since it uses less digits than its factorization.

145113556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140119 (or 140117 counting only the distinct ones).

The product of its digits is 9000, while the sum is 31.

The square root of 145113556 is about 12046.3088122462. The cubic root of 145113556 is about 525.4958954693.

The spelling of 145113556 in words is "one hundred forty-five million, one hundred thirteen thousand, five hundred fifty-six".

Divisors: 1 2 4 7 14 28 37 74 148 259 518 1036 140071 280142 560284 980497 1960994 3921988 5182627 10365254 20730508 36278389 72556778 145113556