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10742490640 = 2457109175991
BaseRepresentation
bin10100000000100110…
…10110011000010000
31000201122220001210201
422000103112120100
5134000034200030
64533544504544
7530131443460
oct120023263020
930648801721
1010742490640
114612946242
1220b977b154
131022785c4b
1473c9dbba0
1542d1752ca
hex2804d6610

10742490640 has 80 divisors (see below), whose sum is σ = 28806370560. Its totient is φ = 3649328640.

The previous prime is 10742490613. The next prime is 10742490641. The reversal of 10742490640 is 4609424701.

It is a happy number.

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

It is a super-2 number, since 2×107424906402 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10742490640.

It is not an unprimeable number, because it can be changed into a prime (10742490641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26956 + ... + 149035.

It is an arithmetic number, because the mean of its divisors is an integer number (360079632).

Almost surely, 210742490640 is an apocalyptic number.

10742490640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10742490640 is an abundant number, since it is smaller than the sum of its proper divisors (18063879920).

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

10742490640 is a wasteful number, since it uses less digits than its factorization.

10742490640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176120 (or 176114 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The spelling of 10742490640 in words is "ten billion, seven hundred forty-two million, four hundred ninety thousand, six hundred forty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 80 109 112 140 218 280 436 545 560 763 872 1090 1526 1744 2180 3052 3815 4360 6104 7630 8720 12208 15260 30520 61040 175991 351982 703964 879955 1231937 1407928 1759910 2463874 2815856 3519820 4927748 6159685 7039640 9855496 12319370 14079280 19183019 19710992 24638740 38366038 49277480 76732076 95915095 98554960 134281133 153464152 191830190 268562266 306928304 383660380 537124532 671405665 767320760 1074249064 1342811330 1534641520 2148498128 2685622660 5371245320 10742490640