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13437371437 = 737257920117
BaseRepresentation
bin11001000001110111…
…00000010000101101
31021200110210012021121
430200323200100231
5210004431341222
610101213300541
7653663526010
oct144073402055
937613705247
1013437371437
115776056056
122730194751
131361b99579
1491689b377
15539a485c7
hex320ee042d

13437371437 has 16 divisors (see below), whose sum is σ = 15778949760. Its totient is φ = 11201554368.

The previous prime is 13437371419. The next prime is 13437371503. The reversal of 13437371437 is 73417373431.

It is a cyclic number.

It is not a de Polignac number, because 13437371437 - 211 = 13437369389 is a prime.

It is a super-2 number, since 2×134373714372 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13437371393 and 13437371402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13437371417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 657903 + ... + 678019.

It is an arithmetic number, because the mean of its divisors is an integer number (986184360).

Almost surely, 213437371437 is an apocalyptic number.

It is an amenable number.

13437371437 is a deficient number, since it is larger than the sum of its proper divisors (2341578323).

13437371437 is a wasteful number, since it uses less digits than its factorization.

13437371437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22740.

The product of its digits is 444528, while the sum is 43.

The spelling of 13437371437 in words is "thirteen billion, four hundred thirty-seven million, three hundred seventy-one thousand, four hundred thirty-seven".

Divisors: 1 7 37 259 2579 18053 20117 95423 140819 667961 744329 5210303 51881743 363172201 1919624491 13437371437