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145750297 = 7111892861
BaseRepresentation
bin10001010111111…
…11100100011001
3101011020212211011
420223333210121
5244303002142
622243533521
73416566660
oct1053774431
9334225734
10145750297
11752aa3a0
124098a2a1
13242717a4
14154dddd7
15cbe0417
hex8aff919

145750297 has 8 divisors (see below), whose sum is σ = 181714752. Its totient is φ = 113571600.

The previous prime is 145750277. The next prime is 145750301. The reversal of 145750297 is 792057541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145750297 - 27 = 145750169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145750217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 946354 + ... + 946507.

It is an arithmetic number, because the mean of its divisors is an integer number (22714344).

Almost surely, 2145750297 is an apocalyptic number.

It is an amenable number.

145750297 is a deficient number, since it is larger than the sum of its proper divisors (35964455).

145750297 is a wasteful number, since it uses less digits than its factorization.

145750297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1892879.

The product of its (nonzero) digits is 88200, while the sum is 40.

The square root of 145750297 is about 12072.7087681266. The cubic root of 145750297 is about 526.2633784868.

The spelling of 145750297 in words is "one hundred forty-five million, seven hundred fifty thousand, two hundred ninety-seven".

Divisors: 1 7 11 77 1892861 13250027 20821471 145750297