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5160128890 = 257233205049
BaseRepresentation
bin1001100111001000…
…10101000101111010
3111022121200201002211
410303210111011322
541031443111030
62212011245334
7241605241360
oct46344250572
914277621084
105160128890
112208838234
12100014984a
13643095c07
1436d465630
1520303712a
hex13391517a

5160128890 has 32 divisors (see below), whose sum is σ = 11076652800. Its totient is φ = 1692265344.

The previous prime is 5160128879. The next prime is 5160128899. The reversal of 5160128890 is 988210615.

It is a super-2 number, since 2×51601288902 = 53253860322825264200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5160128899) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1600915 + ... + 1604134.

It is an arithmetic number, because the mean of its divisors is an integer number (346145400).

Almost surely, 25160128890 is an apocalyptic number.

5160128890 is an abundant number, since it is smaller than the sum of its proper divisors (5916523910).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5160128890 is a wasteful number, since it uses less digits than its factorization.

5160128890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3205086.

The product of its (nonzero) digits is 34560, while the sum is 40.

The square root of 5160128890 is about 71834.0371272560. The cubic root of 5160128890 is about 1728.0389073476.

The spelling of 5160128890 in words is "five billion, one hundred sixty million, one hundred twenty-eight thousand, eight hundred ninety".

Divisors: 1 2 5 7 10 14 23 35 46 70 115 161 230 322 805 1610 3205049 6410098 16025245 22435343 32050490 44870686 73716127 112176715 147432254 224353430 368580635 516012889 737161270 1032025778 2580064445 5160128890