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7438648339 = 231301248593
BaseRepresentation
bin1101110110110000…
…01100010000010011
3201012102010111012001
412323120030100103
5110213243221324
63230044014431
7352223316253
oct67330142023
921172114161
107438648339
113177a17661
121537231417
13917159a85
14507d01963
152d80b3e44
hex1bb60c413

7438648339 has 8 divisors (see below), whose sum is σ = 7768065312. Its totient is φ = 7109731200.

The previous prime is 7438648337. The next prime is 7438648363. The reversal of 7438648339 is 9338468347.

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 7438648339 - 21 = 7438648337 is a prime.

It is a super-2 number, since 2×74386483392 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7438648339.

It is not an unprimeable number, because it can be changed into a prime (7438648331) 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, 94374 + ... + 154219.

It is an arithmetic number, because the mean of its divisors is an integer number (971008164).

Almost surely, 27438648339 is an apocalyptic number.

7438648339 is a deficient number, since it is larger than the sum of its proper divisors (329416973).

7438648339 is a wasteful number, since it uses less digits than its factorization.

7438648339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249917.

The product of its digits is 10450944, while the sum is 55.

The square root of 7438648339 is about 86247.5990332485. The cubic root of 7438648339 is about 1952.0817862852.

The spelling of 7438648339 in words is "seven billion, four hundred thirty-eight million, six hundred forty-eight thousand, three hundred thirty-nine".

Divisors: 1 23 1301 29923 248593 5717639 323419493 7438648339