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1970561802970 = 251031913166799
BaseRepresentation
bin11100101011001110101…
…000101110001011011010
320222101100211200111101101
4130223032220232023122
5224241202310143340
64105132534142014
7262240233646525
oct34531650561332
96871324614341
101970561802970
1169a78a846732
12279aa91b190a
13113a916b2b87
146b538cc7bbc
15363d3878c9a
hex1cacea2e2da

1970561802970 has 16 divisors (see below), whose sum is σ = 3581448249600. Its totient is φ = 780572053584.

The previous prime is 1970561802953. The next prime is 1970561802983. The reversal of 1970561802970 is 792081650791.

It is a happy number.

It is a super-2 number, since 2×19705618029702 (a number of 25 digits) contains 22 as substring.

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, 956582370 + ... + 956584429.

It is an arithmetic number, because the mean of its divisors is an integer number (223840515600).

Almost surely, 21970561802970 is an apocalyptic number.

1970561802970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1970561802970 is a deficient number, since it is larger than the sum of its proper divisors (1610886446630).

1970561802970 is a wasteful number, since it uses less digits than its factorization.

1970561802970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1913166909.

The product of its (nonzero) digits is 1905120, while the sum is 55.

The spelling of 1970561802970 in words is "one trillion, nine hundred seventy billion, five hundred sixty-one million, eight hundred two thousand, nine hundred seventy".

Divisors: 1 2 5 10 103 206 515 1030 1913166799 3826333598 9565833995 19131667990 197056180297 394112360594 985280901485 1970561802970