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7128269950 = 252142565399
BaseRepresentation
bin1101010001110000…
…01100010001111110
3200101210002122002011
412220320030101332
5104044314114300
63135155321434
7341434203064
oct65070142176
920353078064
107128269950
1130287a479a
12146b2b027a
13897a67119
144b89ca034
152bac04eba
hex1a8e0c47e

7128269950 has 12 divisors (see below), whose sum is σ = 13258582200. Its totient is φ = 2851307960.

The previous prime is 7128269933. The next prime is 7128269971. The reversal of 7128269950 is 599628217.

It is a junction number, because it is equal to n+sod(n) for n = 7128269894 and 7128269903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 71282650 + ... + 71282749.

It is an arithmetic number, because the mean of its divisors is an integer number (1104881850).

Almost surely, 27128269950 is an apocalyptic number.

7128269950 is a deficient number, since it is larger than the sum of its proper divisors (6130312250).

7128269950 is a wasteful number, since it uses less digits than its factorization.

7128269950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142565411 (or 142565406 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 49.

The square root of 7128269950 is about 84429.0823709461. The cubic root of 7128269950 is about 1924.5448926934.

The spelling of 7128269950 in words is "seven billion, one hundred twenty-eight million, two hundred sixty-nine thousand, nine hundred fifty".

Divisors: 1 2 5 10 25 50 142565399 285130798 712826995 1425653990 3564134975 7128269950