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148087444 = 22191948519
BaseRepresentation
bin10001101001110…
…10001010010100
3101022122121210011
420310322022110
5300402244234
622410010004
73445502551
oct1064721224
9338577704
10148087444
117665631a
1241716904
13248ac50b
141594ba28
15d002b64
hex8d3a294

148087444 has 12 divisors (see below), whose sum is σ = 272792800. Its totient is φ = 70146648.

The previous prime is 148087441. The next prime is 148087453. The reversal of 148087444 is 444780841.

It is a junction number, because it is equal to n+sod(n) for n = 148087397 and 148087406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148087441) 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, 974184 + ... + 974335.

Almost surely, 2148087444 is an apocalyptic number.

It is an amenable number.

148087444 is a deficient number, since it is larger than the sum of its proper divisors (124705356).

148087444 is a wasteful number, since it uses less digits than its factorization.

148087444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1948542 (or 1948540 counting only the distinct ones).

The product of its (nonzero) digits is 114688, while the sum is 40.

The square root of 148087444 is about 12169.1184561578. The cubic root of 148087444 is about 529.0614027445.

The spelling of 148087444 in words is "one hundred forty-eight million, eighty-seven thousand, four hundred forty-four".

Divisors: 1 2 4 19 38 76 1948519 3897038 7794076 37021861 74043722 148087444