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148238904 = 233114871153
BaseRepresentation
bin10001101010111…
…11001000111000
3101022221022112210
420311133020320
5300422121104
622413135120
73450003252
oct1065371070
9338838483
10148238904
117674a0a0
124178a4a0
1324933438
141598acd2
15d032989
hex8d5f238

148238904 has 64 divisors (see below), whose sum is σ = 405469440. Its totient is φ = 44789760.

The previous prime is 148238899. The next prime is 148238917. The reversal of 148238904 is 409832841.

148238904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127992 + ... + 129144.

It is an arithmetic number, because the mean of its divisors is an integer number (6335460).

Almost surely, 2148238904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 148238904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202734720).

148238904 is an abundant number, since it is smaller than the sum of its proper divisors (257230536).

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

148238904 is a wasteful number, since it uses less digits than its factorization.

148238904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1660 (or 1656 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 148238904 is about 12175.3399952527. The cubic root of 148238904 is about 529.2417113842.

The spelling of 148238904 in words is "one hundred forty-eight million, two hundred thirty-eight thousand, nine hundred four".

Divisors: 1 2 3 4 6 8 11 12 22 24 33 44 66 88 132 264 487 974 1153 1461 1948 2306 2922 3459 3896 4612 5357 5844 6918 9224 10714 11688 12683 13836 16071 21428 25366 27672 32142 38049 42856 50732 64284 76098 101464 128568 152196 304392 561511 1123022 1684533 2246044 3369066 4492088 6176621 6738132 12353242 13476264 18529863 24706484 37059726 49412968 74119452 148238904