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145211339 = 7131595729
BaseRepresentation
bin10001010011110…
…11111111001011
3101010020111111202
420221323333023
5244133230324
622224214415
73412163450
oct1051737713
9333214452
10145211339
1174a71479
124076a40b
1324113390
14153dd827
15cb358ae
hex8a7bfcb

145211339 has 8 divisors (see below), whose sum is σ = 178721760. Its totient is φ = 114892416.

The previous prime is 145211333. The next prime is 145211383. The reversal of 145211339 is 933112541.

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 145211339 - 220 = 144162763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145211333) 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, 797774 + ... + 797955.

It is an arithmetic number, because the mean of its divisors is an integer number (22340220).

Almost surely, 2145211339 is an apocalyptic number.

145211339 is a deficient number, since it is larger than the sum of its proper divisors (33510421).

145211339 is a wasteful number, since it uses less digits than its factorization.

145211339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1595749.

The product of its digits is 3240, while the sum is 29.

The square root of 145211339 is about 12050.3667579041. The cubic root of 145211339 is about 525.6139019677.

The spelling of 145211339 in words is "one hundred forty-five million, two hundred eleven thousand, three hundred thirty-nine".

Divisors: 1 7 13 91 1595729 11170103 20744477 145211339