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7390070557 = 66175114887
BaseRepresentation
bin1101110000111101…
…11000011100011101
3201002000201110222221
412320132320130131
5110113324224212
63221150505341
7351063364132
oct67036703435
921060643887
107390070557
113152558431
121522b05251
1390a07bb1c
14501698589
152d3bba807
hex1b87b871d

7390070557 has 8 divisors (see below), whose sum is σ = 7411603712. Its totient is φ = 7368570000.

The previous prime is 7390070533. The next prime is 7390070573. The reversal of 7390070557 is 7550700937.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-7390070557 is a prime.

It is a super-2 number, since 2×73900705572 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7390020557) 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 7 ways as a sum of consecutive naturals, for example, 488968 + ... + 503854.

It is an arithmetic number, because the mean of its divisors is an integer number (926450464).

Almost surely, 27390070557 is an apocalyptic number.

It is an amenable number.

7390070557 is a deficient number, since it is larger than the sum of its proper divisors (21533155).

7390070557 is a wasteful number, since it uses less digits than its factorization.

7390070557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16299.

The product of its (nonzero) digits is 231525, while the sum is 43.

The square root of 7390070557 is about 85965.5195819812. The cubic root of 7390070557 is about 1947.8231730570.

The spelling of 7390070557 in words is "seven billion, three hundred ninety million, seventy thousand, five hundred fifty-seven".

Divisors: 1 661 751 14887 496411 9840307 11180137 7390070557