Search a number
-
+
145570001 = 192403241
BaseRepresentation
bin10001010110100…
…11100011010001
3101010220201111112
420223103203101
5244231220001
622240023105
73415216223
oct1053234321
9333821445
10145570001
1175196995
1240901a95
132420a6c5
1415494413
15cba6cbb
hex8ad38d1

145570001 has 6 divisors (see below), whose sum is σ = 153635202. Its totient is φ = 137908080.

The previous prime is 145569989. The next prime is 145570043. The reversal of 145570001 is 100075541.

It can be written as a sum of positive squares in only one way, i.e., 145564225 + 5776 = 12065^2 + 76^2 .

It is a de Polignac number, because none of the positive numbers 2k-145570001 is a prime.

It is a super-2 number, since 2×1455700012 = 42381250382280002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145570301) 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 5 ways as a sum of consecutive naturals, for example, 201260 + ... + 201981.

It is an arithmetic number, because the mean of its divisors is an integer number (25605867).

Almost surely, 2145570001 is an apocalyptic number.

It is an amenable number.

145570001 is a deficient number, since it is larger than the sum of its proper divisors (8065201).

145570001 is an equidigital number, since it uses as much as digits as its factorization.

145570001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403279 (or 403260 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 145570001 is about 12065.2393677042. The cubic root of 145570001 is about 526.0462895453.

The spelling of 145570001 in words is "one hundred forty-five million, five hundred seventy thousand, one".

Divisors: 1 19 361 403241 7661579 145570001