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5151210440 = 235128780261
BaseRepresentation
bin1001100110000100…
…10011101111001000
3111021222220121021212
410303002103233020
541022202213230
62211052152252
7241436365145
oct46302235710
914258817255
105151210440
1122037a6712
12bb9168688
1364129271c
1436c1c33cc
15202374895
hex133093bc8

5151210440 has 16 divisors (see below), whose sum is σ = 11590223580. Its totient is φ = 2060484160.

The previous prime is 5151210419. The next prime is 5151210451. The reversal of 5151210440 is 440121515.

It can be written as a sum of positive squares in 2 ways, for example, as 4755757444 + 395452996 = 68962^2 + 19886^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64390091 + ... + 64390170.

Almost surely, 25151210440 is an apocalyptic number.

It is an amenable number.

5151210440 is an abundant number, since it is smaller than the sum of its proper divisors (6439013140).

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

5151210440 is a wasteful number, since it uses less digits than its factorization.

5151210440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128780272 (or 128780268 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 5151210440 is about 71771.9335116451. The cubic root of 5151210440 is about 1727.0427877946.

Adding to 5151210440 its reverse (440121515), we get a palindrome (5591331955).

The spelling of 5151210440 in words is "five billion, one hundred fifty-one million, two hundred ten thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 128780261 257560522 515121044 643901305 1030242088 1287802610 2575605220 5151210440