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145114751 = 232318849
BaseRepresentation
bin10001010011001…
…00011001111111
3101010001121000102
420221210121333
5244122133001
622222151315
73411312035
oct1051443177
9333047012
10145114751
1174a05951
124072253b
13240ab422
14153b6555
15cb16e6b
hex8a6467f

145114751 has 12 divisors (see below), whose sum is σ = 156609600. Its totient is φ = 134312640.

The previous prime is 145114747. The next prime is 145114757. The reversal of 145114751 is 157411541.

It is not a de Polignac number, because 145114751 - 22 = 145114747 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145114757) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11975 + ... + 20823.

It is an arithmetic number, because the mean of its divisors is an integer number (13050800).

Almost surely, 2145114751 is an apocalyptic number.

145114751 is a deficient number, since it is larger than the sum of its proper divisors (11494849).

145114751 is an equidigital number, since it uses as much as digits as its factorization.

145114751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8926 (or 8903 counting only the distinct ones).

The product of its digits is 2800, while the sum is 29.

The square root of 145114751 is about 12046.3584124000. The cubic root of 145114751 is about 525.4973379393.

The spelling of 145114751 in words is "one hundred forty-five million, one hundred fourteen thousand, seven hundred fifty-one".

Divisors: 1 23 31 529 713 8849 16399 203527 274319 4681121 6309337 145114751