Search a number
-
+
23671909834420 = 22547920021123419
BaseRepresentation
bin1010110000111100010111…
…10001101101111010110100
310002211000100002121220202211
411120132023301231322310
511100320032404200140
6122202420353143204
74662144664443031
oct530361361557264
9102730302556684
1023671909834420
1175a7222a81231
1227a393685ab04
131029336783703
145bba25918388
152b0b6255a2ea
hex15878bc6deb4

23671909834420 has 48 divisors (see below), whose sum is σ = 49817683238400. Its totient is φ = 9448447648640.

The previous prime is 23671909834399. The next prime is 23671909834423. The reversal of 23671909834420 is 2443890917632.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23671909834423) 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, 191739471 + ... + 191862889.

It is an arithmetic number, because the mean of its divisors is an integer number (1037868400800).

Almost surely, 223671909834420 is an apocalyptic number.

23671909834420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23671909834420 is an abundant number, since it is smaller than the sum of its proper divisors (26145773403980).

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

23671909834420 is a wasteful number, since it uses less digits than its factorization.

23671909834420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143928 (or 143926 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 58.

The spelling of 23671909834420 in words is "twenty-three trillion, six hundred seventy-one billion, nine hundred nine million, eight hundred thirty-four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 479 958 1916 2395 4790 9580 20021 40042 80084 100105 123419 200210 246838 400420 493676 617095 1234190 2468380 9590059 19180118 38360236 47950295 59117701 95900590 118235402 191801180 236470804 295588505 591177010 1182354020 2470971799 4941943598 9883887196 12354858995 24709717990 49419435980 1183595491721 2367190983442 4734381966884 5917977458605 11835954917210 23671909834420