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3137488740 = 2232517430493
BaseRepresentation
bin1011101100000010…
…0100011101100100
322002122201221102200
42323000210131210
522411144114430
61235155134500
7140515133331
oct27300443544
98078657380
103137488740
111370037801
127368a4430
133b0022819
1421a995988
151356a1460
hexbb024764

3137488740 has 36 divisors (see below), whose sum is σ = 9517049724. Its totient is φ = 836663616.

The previous prime is 3137488723. The next prime is 3137488747. The reversal of 3137488740 is 478847313.

It can be written as a sum of positive squares in 2 ways, for example, as 783104256 + 2354384484 = 27984^2 + 48522^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (3137488747) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8715067 + ... + 8715426.

Almost surely, 23137488740 is an apocalyptic number.

3137488740 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3137488740 is an abundant number, since it is smaller than the sum of its proper divisors (6379560984).

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

3137488740 is a wasteful number, since it uses less digits than its factorization.

3137488740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17430508 (or 17430503 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The square root of 3137488740 is about 56013.2907442510. The cubic root of 3137488740 is about 1463.9538695937.

The spelling of 3137488740 in words is "three billion, one hundred thirty-seven million, four hundred eighty-eight thousand, seven hundred forty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 17430493 34860986 52291479 69721972 87152465 104582958 156874437 174304930 209165916 261457395 313748874 348609860 522914790 627497748 784372185 1045829580 1568744370 3137488740