Search a number
-
+
148978932 = 22331400481
BaseRepresentation
bin10001110000100…
…11110011110100
3101101022220200020
420320103303310
5301114311212
622441045140
73456204624
oct1070236364
9341286606
10148978932
1177105093
1241a867b0
1324b3221b
1415b00884
15d12bd8c
hex8e13cf4

148978932 has 24 divisors (see below), whose sum is σ = 358831872. Its totient is φ = 48057600.

The previous prime is 148978931. The next prime is 148978933. The reversal of 148978932 is 239879841.

148978932 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (148978931) and next prime (148978933).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148978931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199869 + ... + 200612.

It is an arithmetic number, because the mean of its divisors is an integer number (14951328).

Almost surely, 2148978932 is an apocalyptic number.

148978932 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

148978932 is an abundant number, since it is smaller than the sum of its proper divisors (209852940).

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

148978932 is a wasteful number, since it uses less digits than its factorization.

148978932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400519 (or 400517 counting only the distinct ones).

The product of its digits is 870912, while the sum is 51.

The square root of 148978932 is about 12205.6926063210. The cubic root of 148978932 is about 530.1209312276.

Subtracting 148978932 from its reverse (239879841), we obtain a palindrome (90900909).

The spelling of 148978932 in words is "one hundred forty-eight million, nine hundred seventy-eight thousand, nine hundred thirty-two".

Divisors: 1 2 3 4 6 12 31 62 93 124 186 372 400481 800962 1201443 1601924 2402886 4805772 12414911 24829822 37244733 49659644 74489466 148978932