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11764720746 = 23472621733
BaseRepresentation
bin10101111010011101…
…10110010001101010
31010100220101201220000
422331032312101222
5143043232030441
65223222443430
7564353322252
oct127516662152
933326351800
1011764720746
114a97972909
122343b93576
1311564a762c
147d8694962
1548cc982b6
hex2bd3b646a

11764720746 has 20 divisors (see below), whose sum is σ = 26361689442. Its totient is φ = 3921573528.

The previous prime is 11764720741. The next prime is 11764720771. The reversal of 11764720746 is 64702746711.

11764720746 is a `hidden beast` number, since 1 + 176 + 472 + 0 + 7 + 4 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8134055721 + 3630665025 = 90189^2 + 60255^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (11764720741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 36310705 + ... + 36311028.

Almost surely, 211764720746 is an apocalyptic number.

11764720746 is an abundant number, since it is smaller than the sum of its proper divisors (14596968696).

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

11764720746 is an equidigital number, since it uses as much as digits as its factorization.

11764720746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72621747 (or 72621738 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 45.

The spelling of 11764720746 in words is "eleven billion, seven hundred sixty-four million, seven hundred twenty thousand, seven hundred forty-six".

Divisors: 1 2 3 6 9 18 27 54 81 162 72621733 145243466 217865199 435730398 653595597 1307191194 1960786791 3921573582 5882360373 11764720746