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197486910964 = 22779211423127
BaseRepresentation
bin1011011111101100100…
…0110001110111110100
3200212202012110112102201
42313323020301313310
511213423122122324
6230420233514244
720160624021550
oct2677310616764
9625665415381
10197486910964
1176832238212
1232335b72984
1315813789145
1497b6424860
15520ca10444
hex2dfb231df4

197486910964 has 48 divisors (see below), whose sum is σ = 401870049280. Its totient is φ = 83169646560.

The previous prime is 197486910931. The next prime is 197486911001. The reversal of 197486910964 is 469019684791.

It is a junction number, because it is equal to n+sod(n) for n = 197486910896 and 197486910905.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 255169 + ... + 678295.

Almost surely, 2197486910964 is an apocalyptic number.

197486910964 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

197486910964 is an abundant number, since it is smaller than the sum of its proper divisors (204383138316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

197486910964 is a wasteful number, since it uses less digits than its factorization.

197486910964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423428 (or 423426 counting only the distinct ones).

The product of its (nonzero) digits is 23514624, while the sum is 64.

The spelling of 197486910964 in words is "one hundred ninety-seven billion, four hundred eighty-six million, nine hundred ten thousand, nine hundred sixty-four".

Divisors: 1 2 4 7 14 28 79 158 211 316 422 553 844 1106 1477 2212 2954 5908 16669 33338 66676 116683 233366 423127 466732 846254 1692508 2961889 5923778 11847556 33427033 66854066 89279797 133708132 178559594 233989231 357119188 467978462 624958579 935956924 1249917158 2499834316 7053103963 14106207926 28212415852 49371727741 98743455482 197486910964