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7149472149 = 33764409659
BaseRepresentation
bin1101010100010010…
…00100100110010101
3200110020222211000210
412222021010212111
5104120231102044
63141234000033
7342112340061
oct65211044625
920406884023
107149472149
113039766276
121476416019
1389c27b7c1
144bb748aa1
152bc9e21b9
hex1aa244995

7149472149 has 8 divisors (see below), whose sum is σ = 9790268320. Its totient is φ = 4637495376.

The previous prime is 7149472103. The next prime is 7149472193. The reversal of 7149472149 is 9412749417.

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

It is not a de Polignac number, because 7149472149 - 28 = 7149471893 is a prime.

It is a super-2 number, since 2×71494721492 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7149472098 and 7149472107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7149472049) 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, 32204719 + ... + 32204940.

It is an arithmetic number, because the mean of its divisors is an integer number (1223783540).

Almost surely, 27149472149 is an apocalyptic number.

It is an amenable number.

7149472149 is a deficient number, since it is larger than the sum of its proper divisors (2640796171).

7149472149 is a wasteful number, since it uses less digits than its factorization.

7149472149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64409699.

The product of its digits is 508032, while the sum is 48.

The square root of 7149472149 is about 84554.5513204345. The cubic root of 7149472149 is about 1926.4511146641.

The spelling of 7149472149 in words is "seven billion, one hundred forty-nine million, four hundred seventy-two thousand, one hundred forty-nine".

Divisors: 1 3 37 111 64409659 193228977 2383157383 7149472149