Search a number
-
+
152970469 = 374134337
BaseRepresentation
bin10010001111000…
…10010011100101
3101122211201000221
421013202103211
5303130023334
623102404341
73535141021
oct1107422345
9348751027
10152970469
1179390a83
12432906b1
13258cbc92
141645d381
15d6698b4
hex91e24e5

152970469 has 4 divisors (see below), whose sum is σ = 157104844. Its totient is φ = 148836096.

The previous prime is 152970457. The next prime is 152970481. The reversal of 152970469 is 964079251.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 964079251 = 7113578581.

It is an interprime number because it is at equal distance from previous prime (152970457) and next prime (152970481).

It can be written as a sum of positive squares in 2 ways, for example, as 69522244 + 83448225 = 8338^2 + 9135^2 .

It is a cyclic number.

It is not a de Polignac number, because 152970469 - 27 = 152970341 is a prime.

It is a super-2 number, since 2×1529704692 = 46799928772159922, 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 (152970409) 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, 2067132 + ... + 2067205.

It is an arithmetic number, because the mean of its divisors is an integer number (39276211).

Almost surely, 2152970469 is an apocalyptic number.

It is an amenable number.

152970469 is a deficient number, since it is larger than the sum of its proper divisors (4134375).

152970469 is an equidigital number, since it uses as much as digits as its factorization.

152970469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4134374.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 152970469 is about 12368.1230993227. The cubic root of 152970469 is about 534.8137110166.

The spelling of 152970469 in words is "one hundred fifty-two million, nine hundred seventy thousand, four hundred sixty-nine".

Divisors: 1 37 4134337 152970469