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1902681630069 = 311263212190533
BaseRepresentation
bin11011101100000000101…
…010011010010101110101
320201220011011011102121120
4123230000222122111311
5222133142444130234
64014025130334153
7254315140003023
oct33540052322565
96656134142546
101902681630069
11673a171a5090
1226890428a359
1310a5644a8bac
1468139a3d713
153475e3ea049
hex1bb00a9a575

1902681630069 has 16 divisors (see below), whose sum is σ = 2767643325504. Its totient is φ = 1153096044800.

The previous prime is 1902681630067. The next prime is 1902681630103. The reversal of 1902681630069 is 9600361862091.

It is a cyclic number.

It is not a de Polignac number, because 1902681630069 - 21 = 1902681630067 is a prime.

It is a super-2 number, since 2×19026816300692 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1902681630067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226674 + ... + 1963859.

It is an arithmetic number, because the mean of its divisors is an integer number (172977707844).

Almost surely, 21902681630069 is an apocalyptic number.

It is an amenable number.

1902681630069 is a deficient number, since it is larger than the sum of its proper divisors (864961695435).

1902681630069 is a wasteful number, since it uses less digits than its factorization.

1902681630069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2216868.

The product of its (nonzero) digits is 839808, while the sum is 51.

The spelling of 1902681630069 in words is "one trillion, nine hundred two billion, six hundred eighty-one million, six hundred thirty thousand, sixty-nine".

Divisors: 1 3 11 33 26321 78963 289531 868593 2190533 6571599 24095863 72287589 57657019093 172971057279 634227210023 1902681630069