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189095894949 = 31323112031297
BaseRepresentation
bin1011000000011011111…
…1100101111110100101
3200002002102021202101210
42300012333211332211
511044232022114244
6222511445142033
716442654405163
oct2600677457645
9602072252353
10189095894949
1173216780735
12307939ba919
1314aa722ba00
14921bc54233
154dbb0284b9
hex2c06fe5fa5

189095894949 has 24 divisors (see below), whose sum is σ = 281821124352. Its totient is φ = 112612930560.

The previous prime is 189095894947. The next prime is 189095894957. The reversal of 189095894949 is 949498590981.

It is not a de Polignac number, because 189095894949 - 21 = 189095894947 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189095894947) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5999932 + ... + 6031365.

It is an arithmetic number, because the mean of its divisors is an integer number (11742546848).

Almost surely, 2189095894949 is an apocalyptic number.

It is an amenable number.

189095894949 is a deficient number, since it is larger than the sum of its proper divisors (92725229403).

189095894949 is a wasteful number, since it uses less digits than its factorization.

189095894949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12031357 (or 12031344 counting only the distinct ones).

The product of its (nonzero) digits is 302330880, while the sum is 75.

The spelling of 189095894949 in words is "one hundred eighty-nine billion, ninety-five million, eight hundred ninety-four thousand, nine hundred forty-nine".

Divisors: 1 3 13 31 39 93 169 403 507 1209 5239 15717 12031297 36093891 156406861 372970207 469220583 1118910621 2033289193 4848612691 6099867579 14545838073 63031964983 189095894949