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148223904 = 2531543999
BaseRepresentation
bin10001101010110…
…11011110100000
3101022220112222020
420311123132200
5300421131104
622412541440
73446611443
oct1065333640
9338815866
10148223904
11767398a4
1241781880
132492966a
141598565a
15d02d2d9
hex8d5b7a0

148223904 has 24 divisors (see below), whose sum is σ = 389088000. Its totient is φ = 49407936.

The previous prime is 148223903. The next prime is 148223923. The reversal of 148223904 is 409322841.

148223904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-4 number, since 4×1482239044 (a number of 34 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (148223903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 771904 + ... + 772095.

It is an arithmetic number, because the mean of its divisors is an integer number (16212000).

Almost surely, 2148223904 is an apocalyptic number.

It is an amenable number.

148223904 is an abundant number, since it is smaller than the sum of its proper divisors (240864096).

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

148223904 is a wasteful number, since it uses less digits than its factorization.

148223904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1544012 (or 1544004 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 148223904 is about 12174.7239804441. The cubic root of 148223904 is about 529.2238598098.

The spelling of 148223904 in words is "one hundred forty-eight million, two hundred twenty-three thousand, nine hundred four".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 1543999 3087998 4631997 6175996 9263994 12351992 18527988 24703984 37055976 49407968 74111952 148223904