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128152946 = 2317392797
BaseRepresentation
bin1111010001101…
…11010101110010
322221010211210102
413220313111302
5230301343241
620414432402
73114165515
oct750672562
9287124712
10128152946
1166380229
1236b02702
132071cb5c
141303cd7c
15b3b639b
hex7a37572

128152946 has 16 divisors (see below), whose sum is σ = 198769920. Its totient is φ = 61903440.

The previous prime is 128152933. The next prime is 128152957. The reversal of 128152946 is 649251821.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44420 + ... + 47216.

It is an arithmetic number, because the mean of its divisors is an integer number (12423120).

Almost surely, 2128152946 is an apocalyptic number.

128152946 is a deficient number, since it is larger than the sum of its proper divisors (70616974).

128152946 is a wasteful number, since it uses less digits than its factorization.

128152946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3569.

The product of its digits is 34560, while the sum is 38.

The square root of 128152946 is about 11320.4658031373. The cubic root of 128152946 is about 504.1690691080.

The spelling of 128152946 in words is "one hundred twenty-eight million, one hundred fifty-two thousand, nine hundred forty-six".

Divisors: 1 2 31 62 739 1478 2797 5594 22909 45818 86707 173414 2066983 4133966 64076473 128152946