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13958159450 = 252279163189
BaseRepresentation
bin11001111111111100…
…01001110001011010
31100000202201222010112
430333332021301122
5212041242100300
610225015444322
71002616253264
oct147776116132
940022658115
1013958159450
115a13020874
1228566866a2
131415a4c661
14965b04b34
1556a61ae35
hex33ff89c5a

13958159450 has 12 divisors (see below), whose sum is σ = 25962176670. Its totient is φ = 5583263760.

The previous prime is 13958159419. The next prime is 13958159459. The reversal of 13958159450 is 5495185931.

It can be written as a sum of positive squares in 3 ways, for example, as 9092957449 + 4865202001 = 95357^2 + 69751^2 .

It is a Harshad number since it is a multiple of its sum of digits (50), and also a Moran number because the ratio is a prime number: 279163189 = 13958159450 / (1 + 3 + 9 + 5 + 8 + 1 + 5 + 9 + 4 + 5 + 0).

It is not an unprimeable number, because it can be changed into a prime (13958159459) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 139581545 + ... + 139581644.

Almost surely, 213958159450 is an apocalyptic number.

13958159450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13958159450 is a deficient number, since it is larger than the sum of its proper divisors (12004017220).

13958159450 is a wasteful number, since it uses less digits than its factorization.

13958159450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279163201 (or 279163196 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 50.

The spelling of 13958159450 in words is "thirteen billion, nine hundred fifty-eight million, one hundred fifty-nine thousand, four hundred fifty".

Divisors: 1 2 5 10 25 50 279163189 558326378 1395815945 2791631890 6979079725 13958159450