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761748340 = 225349109133
BaseRepresentation
bin101101011001110…
…101101101110100
31222002100211021111
4231121311231310
53030001421330
6203330524404
724606516433
oct5531655564
91862324244
10761748340
11360a94891
12193136704
13c1a7c082
147324d11a
1546d1d32a
hex2d675b74

761748340 has 24 divisors (see below), whose sum is σ = 1604269800. Its totient is φ = 303823488.

The previous prime is 761748331. The next prime is 761748347. The reversal of 761748340 is 43847167.

It can be written as a sum of positive squares in 4 ways, for example, as 148888804 + 612859536 = 12202^2 + 24756^2 .

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 761748293 and 761748302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (761748347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47587 + ... + 61546.

It is an arithmetic number, because the mean of its divisors is an integer number (66844575).

Almost surely, 2761748340 is an apocalyptic number.

It is an amenable number.

761748340 is an abundant number, since it is smaller than the sum of its proper divisors (842521460).

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

761748340 is a wasteful number, since it uses less digits than its factorization.

761748340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109491 (or 109489 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 761748340 is about 27599.7887673076. The cubic root of 761748340 is about 913.2797723162.

The spelling of 761748340 in words is "seven hundred sixty-one million, seven hundred forty-eight thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 349 698 1396 1745 3490 6980 109133 218266 436532 545665 1091330 2182660 38087417 76174834 152349668 190437085 380874170 761748340