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107440383961 = 43327572
BaseRepresentation
bin110010000001111110…
…0100010011111011001
3101021022201001000021001
41210003330202133121
53230014214241321
6121205112145001
710522321124011
oct1440374423731
9337281030231
10107440383961
1141624328759
12189a5698161
13a1931264c1
1452b3294c41
152bdc542c91
hex1903f227d9

107440383961 has 9 divisors (see below), whose sum is σ = 107831532861. Its totient is φ = 107050652352.

The previous prime is 107440383959. The next prime is 107440383971. The reversal of 107440383961 is 169383044701.

The square root of 107440383961 is 327781.

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

It can be written as a sum of positive squares in 4 ways, for example, as 10955599561 + 96484784400 = 104669^2 + 310620^2 .

It is not a de Polignac number, because 107440383961 - 21 = 107440383959 is a prime.

It is a super-2 number, since 2×1074403839612 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (107440383971) 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 8 ways as a sum of consecutive naturals, for example, 141928795 + ... + 141929551.

It is an arithmetic number, because the mean of its divisors is an integer number (11981281429).

Almost surely, 2107440383961 is an apocalyptic number.

107440383961 is the 327781-st square number.

107440383961 is the 163891-st centered octagonal number.

It is an amenable number.

107440383961 is a deficient number, since it is larger than the sum of its proper divisors (391148900).

107440383961 is an frugal number, since it uses more digits than its factorization.

107440383961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2380 (or 1190 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 46.

It can be divided in two parts, 107440 and 383961, that added together give a square (491401 = 7012).

The spelling of 107440383961 in words is "one hundred seven billion, four hundred forty million, three hundred eighty-three thousand, nine hundred sixty-one".

Divisors: 1 433 757 187489 327781 573049 141929173 248130217 107440383961