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20348762670 = 2325226097363
BaseRepresentation
bin10010111100111000…
…010111101000101110
31221112010210020200200
4102330320113220232
5313133240401140
613203104334330
71320155425455
oct227470275056
957463706620
1020348762670
1186a2389635
123b3a9143a6
131bc3a19892
14db074db9c
157e16ad030
hex4bce17a2e

20348762670 has 24 divisors (see below), whose sum is σ = 52906783176. Its totient is φ = 5426336688.

The previous prime is 20348762647. The next prime is 20348762701. The reversal of 20348762670 is 7626784302.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 113048592 + ... + 113048771.

It is an arithmetic number, because the mean of its divisors is an integer number (2204449299).

Almost surely, 220348762670 is an apocalyptic number.

20348762670 is an abundant number, since it is smaller than the sum of its proper divisors (32558020506).

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

20348762670 is a wasteful number, since it uses less digits than its factorization.

20348762670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226097376 (or 226097373 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 45.

The spelling of 20348762670 in words is "twenty billion, three hundred forty-eight million, seven hundred sixty-two thousand, six hundred seventy".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 226097363 452194726 678292089 1130486815 1356584178 2034876267 2260973630 3391460445 4069752534 6782920890 10174381335 20348762670