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2837980138 = 27228958981
BaseRepresentation
bin1010100100101000…
…0010001111101010
321022210011022212111
42221022002033222
521303010331023
61145335432534
7130220301400
oct25112021752
97283138774
102837980138
111226a69534
1267252574a
13362c675b6
141cccad470
1511923d00d
hexa92823ea

2837980138 has 12 divisors (see below), whose sum is σ = 4951985922. Its totient is φ = 1216277160.

The previous prime is 2837980109. The next prime is 2837980147. The reversal of 2837980138 is 8310897382.

It can be written as a sum of positive squares in only one way, i.e., 1676329249 + 1161650889 = 40943^2 + 34083^2 .

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a junction number, because it is equal to n+sod(n) for n = 2837980091 and 2837980100.

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, 14479393 + ... + 14479588.

Almost surely, 22837980138 is an apocalyptic number.

2837980138 is a deficient number, since it is larger than the sum of its proper divisors (2114005784).

2837980138 is a wasteful number, since it uses less digits than its factorization.

2837980138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28958997 (or 28958990 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 49.

The square root of 2837980138 is about 53272.6959895968. The cubic root of 2837980138 is about 1415.8039420877.

The spelling of 2837980138 in words is "two billion, eight hundred thirty-seven million, nine hundred eighty thousand, one hundred thirty-eight".

Divisors: 1 2 7 14 49 98 28958981 57917962 202712867 405425734 1418990069 2837980138