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157372163837 = 723211676813
BaseRepresentation
bin1001001010010000011…
…1001010011011111101
3120001012112111020110122
42102210013022123331
510034244233220322
6200143515344325
714240554215200
oct2224407123375
9501175436418
10157372163837
1160817535a39
12265bb7520a5
1311abc9cb895
14788c907937
154160e0e442
hex24a41ca6fd

157372163837 has 6 divisors (see below), whose sum is σ = 183065578398. Its totient is φ = 134890426104.

The previous prime is 157372163833. The next prime is 157372163867. The reversal of 157372163837 is 738361273751.

157372163837 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 103404692356 + 53967471481 = 321566^2 + 232309^2 .

It is not a de Polignac number, because 157372163837 - 22 = 157372163833 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157372163833) 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 5 ways as a sum of consecutive naturals, for example, 1605838358 + ... + 1605838455.

It is an arithmetic number, because the mean of its divisors is an integer number (30510929733).

Almost surely, 2157372163837 is an apocalyptic number.

It is an amenable number.

157372163837 is a deficient number, since it is larger than the sum of its proper divisors (25693414561).

157372163837 is an equidigital number, since it uses as much as digits as its factorization.

157372163837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3211676827 (or 3211676820 counting only the distinct ones).

The product of its digits is 4445280, while the sum is 53.

The spelling of 157372163837 in words is "one hundred fifty-seven billion, three hundred seventy-two million, one hundred sixty-three thousand, eight hundred thirty-seven".

Divisors: 1 7 49 3211676813 22481737691 157372163837