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196872741461 = 1117897521951
BaseRepresentation
bin1011011101011010000…
…1111010001001010101
3200211011101210111021002
42313112201322021111
511211143410211321
6230235254033045
720136455456114
oct2672641721125
9624141714232
10196872741461
1176547591610
12321a4348785
131574646bc36
149758a2dc7b
1551c3b4420b
hex2dd687a255

196872741461 has 4 divisors (see below), whose sum is σ = 214770263424. Its totient is φ = 178975219500.

The previous prime is 196872741413. The next prime is 196872741463. The reversal of 196872741461 is 164147278691.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2k-196872741461 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 196872741397 and 196872741406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196872741463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8948760965 + ... + 8948760986.

It is an arithmetic number, because the mean of its divisors is an integer number (53692565856).

Almost surely, 2196872741461 is an apocalyptic number.

196872741461 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

196872741461 is a deficient number, since it is larger than the sum of its proper divisors (17897521963).

196872741461 is a wasteful number, since it uses less digits than its factorization.

196872741461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17897521962.

The product of its digits is 4064256, while the sum is 56.

The spelling of 196872741461 in words is "one hundred ninety-six billion, eight hundred seventy-two million, seven hundred forty-one thousand, four hundred sixty-one".

Divisors: 1 11 17897521951 196872741461