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981272413 = 11611462403
BaseRepresentation
bin111010011111010…
…000011101011101
32112101102210200201
4322133100131131
54002201204123
6241212023501
733213451342
oct7237203535
92471383621
10981272413
114639a2540
12234761b91
131283b0c84
14944747c9
155b2325ad
hex3a7d075d

981272413 has 8 divisors (see below), whose sum is σ = 1088028576. Its totient is φ = 877441200.

The previous prime is 981272407. The next prime is 981272417. The reversal of 981272413 is 314272189.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 981272413 - 25 = 981272381 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 (981272417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 730531 + ... + 731872.

It is an arithmetic number, because the mean of its divisors is an integer number (136003572).

Almost surely, 2981272413 is an apocalyptic number.

It is an amenable number.

981272413 is a deficient number, since it is larger than the sum of its proper divisors (106756163).

981272413 is a wasteful number, since it uses less digits than its factorization.

981272413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1462475.

The product of its digits is 24192, while the sum is 37.

The square root of 981272413 is about 31325.2679637382. The cubic root of 981272413 is about 993.7180912555.

The spelling of 981272413 in words is "nine hundred eighty-one million, two hundred seventy-two thousand, four hundred thirteen".

Divisors: 1 11 61 671 1462403 16086433 89206583 981272413