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131700987708 = 2231719148122943
BaseRepresentation
bin111101010100111111…
…1011001011100111100
3110120221110122101002120
41322221333121130330
54124210423101313
6140300321122540
712341446632123
oct1725177313474
9416843571076
10131700987708
11509438573a4
1221636489450
13c55b408834
14653536aaba
15365c35ed23
hex1ea9fd973c

131700987708 has 96 divisors (see below), whose sum is σ = 342750320640. Its totient is φ = 39115192320.

The previous prime is 131700987703. The next prime is 131700987713. The reversal of 131700987708 is 807789007131.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (131700987703) and next prime (131700987713).

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131700987703) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5728885 + ... + 5751827.

It is an arithmetic number, because the mean of its divisors is an integer number (3570315840).

Almost surely, 2131700987708 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131700987708, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171375160320).

131700987708 is an abundant number, since it is smaller than the sum of its proper divisors (211049332932).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131700987708 is a wasteful number, since it uses less digits than its factorization.

131700987708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24467 (or 24465 counting only the distinct ones).

The product of its (nonzero) digits is 592704, while the sum is 51.

The spelling of 131700987708 in words is "one hundred thirty-one billion, seven hundred million, nine hundred eighty-seven thousand, seven hundred eight".

Divisors: 1 2 3 4 6 12 17 19 34 38 51 57 68 76 102 114 204 228 323 646 969 1292 1481 1938 2962 3876 4443 5924 8886 17772 22943 25177 28139 45886 50354 56278 68829 75531 84417 91772 100708 112556 137658 151062 168834 275316 302124 337668 390031 435917 478363 780062 871834 956726 1170093 1307751 1435089 1560124 1743668 1913452 2340186 2615502 2870178 4680372 5231004 5740356 7410589 14821178 22231767 29642356 33978583 44463534 67957166 88927068 101935749 135914332 203871498 407742996 577635911 645593077 1155271822 1291186154 1732907733 1936779231 2310543644 2582372308 3465815466 3873558462 6931630932 7747116924 10975082309 21950164618 32925246927 43900329236 65850493854 131700987708