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148971069 = 3413236151
BaseRepresentation
bin10001110000100…
…01111000111101
3101101022111220000
420320101320331
5301114033234
622440544513
73456142662
oct1070217075
9341274800
10148971069
11770aa195
1241a82139
1324b2b780
1415adba69
15d129899
hex8e11e3d

148971069 has 40 divisors (see below), whose sum is σ = 250115712. Its totient is φ = 87674400.

The previous prime is 148971037. The next prime is 148971073. The reversal of 148971069 is 960179841.

It is a happy number.

148971069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 148971069 - 25 = 148971037 is a prime.

It is a super-2 number, since 2×1489710692 = 44384758798005522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148971029) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 21144 + ... + 27294.

Almost surely, 2148971069 is an apocalyptic number.

It is an amenable number.

148971069 is a deficient number, since it is larger than the sum of its proper divisors (101144643).

148971069 is a wasteful number, since it uses less digits than its factorization.

148971069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6199 (or 6190 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 148971069 is about 12205.3704982684. The cubic root of 148971069 is about 530.1116045974. Note that the first 3 decimals are identical.

The spelling of 148971069 in words is "one hundred forty-eight million, nine hundred seventy-one thousand, sixty-nine".

Divisors: 1 3 9 13 23 27 39 69 81 117 207 299 351 621 897 1053 1863 2691 6151 8073 18453 24219 55359 79963 141473 166077 239889 424419 498231 719667 1273257 1839149 2159001 3819771 5517447 6477003 11459313 16552341 49657023 148971069