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29801807424 = 263271932
BaseRepresentation
bin11011110000010100…
…110111111001000000
32211220221100200021100
4123300110313321000
5442013230314144
621405112054400
72103342116634
oct336024677100
984827320240
1029801807424
1111703386014
125938694400
132a6c2c169c
141629db6dc4
15b9652a269
hex6f0537e40

29801807424 has 63 divisors (see below), whose sum is σ = 85433377393. Its totient is φ = 9932554752.

The previous prime is 29801807419. The next prime is 29801807447. The reversal of 29801807424 is 42470810892.

The square root of 29801807424 is 172632.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1835265600 + 27966541824 = 42840^2 + 167232^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 29801807424.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4139572 + ... + 4146764.

Almost surely, 229801807424 is an apocalyptic number.

29801807424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

29801807424 is the 172632-nd square number.

It is an amenable number.

29801807424 is an abundant number, since it is smaller than the sum of its proper divisors (55631569969).

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

29801807424 is an frugal number, since it uses more digits than its factorization.

29801807424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14404 (or 7198 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

It can be divided in two parts, 29801 and 807424, that added together give a square (837225 = 9152).

The spelling of 29801807424 in words is "twenty-nine billion, eight hundred one million, eight hundred seven thousand, four hundred twenty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 144 192 288 576 7193 14386 21579 28772 43158 57544 64737 86316 115088 129474 172632 230176 258948 345264 460352 517896 690528 1035792 1381056 2071584 4143168 51739249 103478498 155217747 206956996 310435494 413913992 465653241 620870988 827827984 931306482 1241741976 1655655968 1862612964 2483483952 3311311936 3725225928 4966967904 7450451856 9933935808 14900903712 29801807424