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148470997 = 1923113267
BaseRepresentation
bin10001101100101…
…11110011010101
3101100101002220211
420312113303111
5301002032442
622422125421
73451661023
oct1066276325
9340332824
10148470997
1176898504
1241880871
13249b4c7c
1415a0b713
15d07b617
hex8d97cd5

148470997 has 12 divisors (see below), whose sum is σ = 161763456. Its totient is φ = 136109160.

The previous prime is 148470983. The next prime is 148471019. The reversal of 148470997 is 799074841.

It is not a de Polignac number, because 148470997 - 215 = 148438229 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 148470997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148470397) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4558 + ... + 17824.

It is an arithmetic number, because the mean of its divisors is an integer number (13480288).

Almost surely, 2148470997 is an apocalyptic number.

It is an amenable number.

148470997 is a deficient number, since it is larger than the sum of its proper divisors (13292459).

148470997 is a wasteful number, since it uses less digits than its factorization.

148470997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13336 (or 13317 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 49.

The square root of 148470997 is about 12184.8675413400. The cubic root of 148470997 is about 529.5177730735.

The spelling of 148470997 in words is "one hundred forty-eight million, four hundred seventy thousand, nine hundred ninety-seven".

Divisors: 1 19 31 361 589 11191 13267 252073 411277 4789387 7814263 148470997