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148431995 = 5237317681
BaseRepresentation
bin10001101100011…
…10010001111011
3101100022010102022
420312032101323
5300444310440
622421225055
73451436225
oct1066162173
9340263368
10148431995
1176871178
124186218b
13249a02aa
14159db415
15d06ecb5
hex8d8e47b

148431995 has 16 divisors (see below), whose sum is σ = 188419392. Its totient is φ = 112020480.

The previous prime is 148431977. The next prime is 148432027. The reversal of 148431995 is 599134841.

It is not a de Polignac number, because 148431995 - 28 = 148431739 is a prime.

It is a Duffinian 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, 446 + ... + 17235.

It is an arithmetic number, because the mean of its divisors is an integer number (11776212).

Almost surely, 2148431995 is an apocalyptic number.

148431995 is a deficient number, since it is larger than the sum of its proper divisors (39987397).

148431995 is a wasteful number, since it uses less digits than its factorization.

148431995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17782.

The product of its digits is 155520, while the sum is 44.

The square root of 148431995 is about 12183.2670084834. The cubic root of 148431995 is about 529.4714024888.

The spelling of 148431995 in words is "one hundred forty-eight million, four hundred thirty-one thousand, nine hundred ninety-five".

Divisors: 1 5 23 73 115 365 1679 8395 17681 88405 406663 1290713 2033315 6453565 29686399 148431995