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148657145 = 5713893671
BaseRepresentation
bin10001101110001…
…01001111111001
3101100201120021012
420313011033321
5301024012040
622430123305
73453364520
oct1067051771
9340646235
10148657145
1176a0534a
1241950535
1324a4b910
1415a594b7
15d0b6865
hex8dc53f9

148657145 has 32 divisors (see below), whose sum is σ = 222082560. Its totient is φ = 93012480.

The previous prime is 148657087. The next prime is 148657147. The reversal of 148657145 is 541756841.

It is not a de Polignac number, because 148657145 - 26 = 148657081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (148657147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38660 + ... + 42330.

It is an arithmetic number, because the mean of its divisors is an integer number (6940080).

Almost surely, 2148657145 is an apocalyptic number.

It is an amenable number.

148657145 is a deficient number, since it is larger than the sum of its proper divisors (73425415).

148657145 is a wasteful number, since it uses less digits than its factorization.

148657145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3785.

The product of its digits is 134400, while the sum is 41.

The square root of 148657145 is about 12192.5036395320. The cubic root of 148657145 is about 529.7389779127.

The spelling of 148657145 in words is "one hundred forty-eight million, six hundred fifty-seven thousand, one hundred forty-five".

Divisors: 1 5 7 13 35 65 89 91 445 455 623 1157 3115 3671 5785 8099 18355 25697 40495 47723 128485 238615 326719 334061 1633595 1670305 2287033 4247347 11435165 21236735 29731429 148657145