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211531635130 = 2541243512891
BaseRepresentation
bin1100010100000001000…
…1001001100110111010
3202020000000002110000211
43011000101021212322
511431204044311010
6241102025021334
721165644142334
oct3050021114672
9666000073024
10211531635130
118178a103372
1234bb562484a
1316c41426c0a
14a349820454
155780a2a08a
hex31404499ba

211531635130 has 16 divisors (see below), whose sum is σ = 380766917664. Its totient is φ = 84610437520.

The previous prime is 211531635097. The next prime is 211531635151. The reversal of 211531635130 is 31536135112.

It is a junction number, because it is equal to n+sod(n) for n = 211531635092 and 211531635101.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155985 + ... + 668875.

It is an arithmetic number, because the mean of its divisors is an integer number (23797932354).

Almost surely, 2211531635130 is an apocalyptic number.

211531635130 is a deficient number, since it is larger than the sum of its proper divisors (169235282534).

211531635130 is a wasteful number, since it uses less digits than its factorization.

211531635130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554141.

The product of its (nonzero) digits is 8100, while the sum is 31.

The spelling of 211531635130 in words is "two hundred eleven billion, five hundred thirty-one million, six hundred thirty-five thousand, one hundred thirty".

Divisors: 1 2 5 10 41243 82486 206215 412430 512891 1025782 2564455 5128910 21153163513 42306327026 105765817565 211531635130