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53700142237 = 77671448891
BaseRepresentation
bin110010000000110001…
…110010010010011101
312010121110021212112221
4302000301302102131
51334434214022422
640400340225341
73610511451310
oct620061622235
9163543255487
1053700142237
112085736a745
12a4a809b251
1350aa5132c1
142855d0a977
1515e46383c7
hexc80c7249d

53700142237 has 4 divisors (see below), whose sum is σ = 61371591136. Its totient is φ = 46028693340.

The previous prime is 53700142219. The next prime is 53700142241. The reversal of 53700142237 is 73224100735.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2k-53700142237 is a prime.

It is a super-3 number, since 3×537001422373 (a number of 33 digits) contains 333 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 (53700145237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3835724439 + ... + 3835724452.

It is an arithmetic number, because the mean of its divisors is an integer number (15342897784).

Almost surely, 253700142237 is an apocalyptic number.

It is an amenable number.

53700142237 is a deficient number, since it is larger than the sum of its proper divisors (7671448899).

53700142237 is an equidigital number, since it uses as much as digits as its factorization.

53700142237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7671448898.

The product of its (nonzero) digits is 35280, while the sum is 34.

The spelling of 53700142237 in words is "fifty-three billion, seven hundred million, one hundred forty-two thousand, two hundred thirty-seven".

Divisors: 1 7 7671448891 53700142237