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5015000720 = 245377323209
BaseRepresentation
bin1001010101110101…
…01101011010010000
3110221111121102200102
410222322231122100
540232320010340
62145344511532
7235163542232
oct45272553220
913844542612
105015000720
1121439232a4
12b7b61b5a8
1361bcb1662
14358088252
151e541b215
hex12aead690

5015000720 has 80 divisors (see below), whose sum is σ = 12139572720. Its totient is φ = 1924964352.

The previous prime is 5015000713. The next prime is 5015000737. The reversal of 5015000720 is 270005105.

It can be written as a sum of positive squares in 8 ways, for example, as 488940544 + 4526060176 = 22112^2 + 67276^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 5015000692 and 5015000701.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204476 + ... + 227684.

It is an arithmetic number, because the mean of its divisors is an integer number (151744659).

Almost surely, 25015000720 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5015000720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6069786360).

5015000720 is an abundant number, since it is smaller than the sum of its proper divisors (7124572000).

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

5015000720 is a wasteful number, since it uses less digits than its factorization.

5015000720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23332 (or 23326 counting only the distinct ones).

The product of its (nonzero) digits is 350, while the sum is 20.

The square root of 5015000720 is about 70816.6697889699. The cubic root of 5015000720 is about 1711.6842974068.

Adding to 5015000720 its reverse (270005105), we get a palindrome (5285005825).

The spelling of 5015000720 in words is "five billion, fifteen million, seven hundred twenty", and thus it is an aban number.

Divisors: 1 2 4 5 8 10 16 20 37 40 73 74 80 146 148 185 292 296 365 370 584 592 730 740 1168 1460 1480 2701 2920 2960 5402 5840 10804 13505 21608 23209 27010 43216 46418 54020 92836 108040 116045 185672 216080 232090 371344 464180 858733 928360 1694257 1717466 1856720 3388514 3434932 4293665 6777028 6869864 8471285 8587330 13554056 13739728 16942570 17174660 27108112 33885140 34349320 62687509 67770280 68698640 125375018 135540560 250750036 313437545 501500072 626875090 1003000144 1253750180 2507500360 5015000720