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145932701 = 214168161
BaseRepresentation
bin10001011001011…
…00000110011101
3101011121011000212
420230230012131
5244324321301
622251502205
73421256525
oct1054540635
9334534025
10145932701
1175414442
1240a57965
1324306815
141554a685
15cc294bb
hex8b2c19d

145932701 has 4 divisors (see below), whose sum is σ = 146003004. Its totient is φ = 145862400.

The previous prime is 145932667. The next prime is 145932713. The reversal of 145932701 is 107239541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 107239541 = 109983849.

It can be written as a sum of positive squares in 2 ways, for example, as 131102500 + 14830201 = 11450^2 + 3851^2 .

It is a cyclic number.

It is not a de Polignac number, because 145932701 - 26 = 145932637 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 (145931701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31940 + ... + 36221.

It is an arithmetic number, because the mean of its divisors is an integer number (36500751).

Almost surely, 2145932701 is an apocalyptic number.

It is an amenable number.

145932701 is a deficient number, since it is larger than the sum of its proper divisors (70303).

145932701 is an equidigital number, since it uses as much as digits as its factorization.

145932701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70302.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 145932701 is about 12080.2608001649. The cubic root of 145932701 is about 526.4828235028.

The spelling of 145932701 in words is "one hundred forty-five million, nine hundred thirty-two thousand, seven hundred one".

Divisors: 1 2141 68161 145932701