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137201983 = 197221157
BaseRepresentation
bin10000010110110…
…00100100111111
3100120011120201221
420023120210333
5240110430413
621340414211
73254124532
oct1013304477
9316146657
10137201983
11704a0976
1239b47367
132256a909
1414316a19
15c0a268d
hex82d893f

137201983 has 4 divisors (see below), whose sum is σ = 144423160. Its totient is φ = 129980808.

The previous prime is 137201959. The next prime is 137202007. The reversal of 137201983 is 389102731.

137201983 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (137201959) and next prime (137202007).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-137201983 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 (137201083) 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, 3610560 + ... + 3610597.

It is an arithmetic number, because the mean of its divisors is an integer number (36105790).

Almost surely, 2137201983 is an apocalyptic number.

137201983 is a deficient number, since it is larger than the sum of its proper divisors (7221177).

137201983 is an equidigital number, since it uses as much as digits as its factorization.

137201983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7221176.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 137201983 is about 11713.3250189688. The cubic root of 137201983 is about 515.7668946393.

The spelling of 137201983 in words is "one hundred thirty-seven million, two hundred one thousand, nine hundred eighty-three".

Divisors: 1 19 7221157 137201983