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70152149 = 172673623
BaseRepresentation
bin1000010111001…
…10111111010101
311220000002122202
410023212333111
5120424332044
610543334245
71511166134
oct413467725
9156002582
1070152149
1136665391
121b5b1385
13116c2b62
14946191b
15625ac4e
hex42e6fd5

70152149 has 12 divisors (see below), whose sum is σ = 75654624. Its totient is φ = 65022144.

The previous prime is 70152127. The next prime is 70152169. The reversal of 70152149 is 94125107.

It is not a de Polignac number, because 70152149 - 212 = 70148053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70152109) 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, 17552 + ... + 21174.

It is an arithmetic number, because the mean of its divisors is an integer number (6304552).

Almost surely, 270152149 is an apocalyptic number.

It is an amenable number.

70152149 is a deficient number, since it is larger than the sum of its proper divisors (5502475).

70152149 is a wasteful number, since it uses less digits than its factorization.

70152149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3724 (or 3707 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 70152149 is about 8375.6879717430. The cubic root of 70152149 is about 412.4269088740.

The spelling of 70152149 in words is "seventy million, one hundred fifty-two thousand, one hundred forty-nine".

Divisors: 1 17 67 289 1139 3623 19363 61591 242741 1047047 4126597 70152149