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10507890064 = 24745232
BaseRepresentation
bin10011100100101000…
…11010110110010000
31000010022110010022111
421302110122312100
5133010004440224
64454404315104
7521252410000
oct116224326620
930108403274
1010507890064
114502480371
1220530a2a94
13cb5ca5939
147197b0000
15417783d94
hex27251ad90

10507890064 has 75 divisors (see below), whose sum is σ = 23796296043. Its totient is φ = 4494770784.

The previous prime is 10507890061. The next prime is 10507890137. The reversal of 10507890064 is 46009870501.

The square root of 10507890064 is 102508.

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

It is a super-2 number, since 2×105078900642 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10507889999 and 10507890026.

It is not an unprimeable number, because it can be changed into a prime (10507890061) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 20091307 + ... + 20091829.

Almost surely, 210507890064 is an apocalyptic number.

10507890064 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

10507890064 is the 102508-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10507890064

10507890064 is an abundant number, since it is smaller than the sum of its proper divisors (13288405979).

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

10507890064 is an frugal number, since it uses more digits than its factorization.

10507890064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082 (or 532 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The spelling of 10507890064 in words is "ten billion, five hundred seven million, eight hundred ninety thousand, sixty-four".

Divisors: 1 2 4 7 8 14 16 28 49 56 98 112 196 343 392 523 686 784 1046 1372 2092 2401 2744 3661 4184 4802 5488 7322 8368 9604 14644 19208 25627 29288 38416 51254 58576 102508 179389 205016 273529 358778 410032 547058 717556 1094116 1255723 1435112 1914703 2188232 2511446 2870224 3829406 4376464 5022892 7658812 10045784 13402921 15317624 20091568 26805842 30635248 53611684 93820447 107223368 187640894 214446736 375281788 656743129 750563576 1313486258 1501127152 2626972516 5253945032 10507890064