Search a number
-
+
152842780 = 2257642139
BaseRepresentation
bin10010001110000…
…11001000011100
3101122121012212201
421013003020130
5303111432110
623055541244
73534066526
oct1107031034
9348535781
10152842780
1179304052
124322a824
1325885b1c
1416428a16
15d641b3a
hex91c321c

152842780 has 12 divisors (see below), whose sum is σ = 320969880. Its totient is φ = 61137104.

The previous prime is 152842777. The next prime is 152842829. The reversal of 152842780 is 87248251.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3821050 + ... + 3821089.

It is an arithmetic number, because the mean of its divisors is an integer number (26747490).

Almost surely, 2152842780 is an apocalyptic number.

152842780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

152842780 is an abundant number, since it is smaller than the sum of its proper divisors (168127100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

152842780 is a wasteful number, since it uses less digits than its factorization.

152842780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7642148 (or 7642146 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 37.

The square root of 152842780 is about 12362.9600015530. The cubic root of 152842780 is about 534.6648612890.

The spelling of 152842780 in words is "one hundred fifty-two million, eight hundred forty-two thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 7642139 15284278 30568556 38210695 76421390 152842780