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145183752 = 2335747227
BaseRepresentation
bin10001010011101…
…01010000001000
3101010012002200000
420221311100020
5244131340002
622223443000
73412020150
oct1051652010
9333162600
10145183752
1174a5277a
1240756460
132410395c
14153d3760
15cb2c61c
hex8a75408

145183752 has 192 divisors, whose sum is σ = 478033920. Its totient is φ = 40419648.

The previous prime is 145183741. The next prime is 145183793. The reversal of 145183752 is 257381541.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 639463 + ... + 639689.

It is an arithmetic number, because the mean of its divisors is an integer number (2489760).

Almost surely, 2145183752 is an apocalyptic number.

145183752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145183752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239016960).

145183752 is an abundant number, since it is smaller than the sum of its proper divisors (332850168).

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

145183752 is a wasteful number, since it uses less digits than its factorization.

145183752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302 (or 286 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 145183752 is about 12049.2220495765. Note that the first 3 decimals coincide. The cubic root of 145183752 is about 525.5806147851.

The spelling of 145183752 in words is "one hundred forty-five million, one hundred eighty-three thousand, seven hundred fifty-two".