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145746701 = 197670879
BaseRepresentation
bin10001010111111…
…10101100001101
3101011020200212222
420223332230031
5244302343301
622243505125
73416553332
oct1053765415
9334220788
10145746701
11752a7721
12409881a5
132426cc69
14154dc989
15cbde31b
hex8afeb0d

145746701 has 4 divisors (see below), whose sum is σ = 153417600. Its totient is φ = 138075804.

The previous prime is 145746673. The next prime is 145746709. The reversal of 145746701 is 107647541.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 107647541 = 372909393.

It is a cyclic number.

It is not a de Polignac number, because 145746701 - 218 = 145484557 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 (145746709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3835421 + ... + 3835458.

It is an arithmetic number, because the mean of its divisors is an integer number (38354400).

Almost surely, 2145746701 is an apocalyptic number.

It is an amenable number.

145746701 is a deficient number, since it is larger than the sum of its proper divisors (7670899).

145746701 is an equidigital number, since it uses as much as digits as its factorization.

145746701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7670898.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 145746701 is about 12072.5598362568. The cubic root of 145746701 is about 526.2590504026.

The spelling of 145746701 in words is "one hundred forty-five million, seven hundred forty-six thousand, seven hundred one".

Divisors: 1 19 7670879 145746701