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148775740 = 2257438787
BaseRepresentation
bin10001101111000…
…10001100111100
3101100221120221121
420313202030330
5301041310430
622432440324
73454400341
oct1067421474
9340846847
10148775740
1176a86463
12419a90a4
1324a908a9
1415a8a7c8
15d0dba7a
hex8de233c

148775740 has 12 divisors (see below), whose sum is σ = 312429096. Its totient is φ = 59510288.

The previous prime is 148775729. The next prime is 148775741. The reversal of 148775740 is 47577841.

148775740 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 not an unprimeable number, because it can be changed into a prime (148775741) 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, 3719374 + ... + 3719413.

It is an arithmetic number, because the mean of its divisors is an integer number (26035758).

Almost surely, 2148775740 is an apocalyptic number.

148775740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

148775740 is an abundant number, since it is smaller than the sum of its proper divisors (163653356).

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

148775740 is a wasteful number, since it uses less digits than its factorization.

148775740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7438796 (or 7438794 counting only the distinct ones).

The product of its (nonzero) digits is 219520, while the sum is 43.

The square root of 148775740 is about 12197.3661091237. The cubic root of 148775740 is about 529.8798113607.

The spelling of 148775740 in words is "one hundred forty-eight million, seven hundred seventy-five thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 7438787 14877574 29755148 37193935 74387870 148775740