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20622620000 = 25548391229
BaseRepresentation
bin10011001101001101…
…000011010101100000
31222020020002122022202
4103031031003111200
5314213342320000
613250210152332
71330022243363
oct231515032540
958206078282
1020622620000
118822a27704
123bb65826a8
131c38693338
14dd8c7a0da
1580a755dd5
hex4cd343560

20622620000 has 120 divisors (see below), whose sum is σ = 50836539600. Its totient is φ = 8232512000.

The previous prime is 20622619999. The next prime is 20622620009. The reversal of 20622620000 is 2622602.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20622620009) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 16779386 + ... + 16780614.

It is an arithmetic number, because the mean of its divisors is an integer number (423637830).

Almost surely, 220622620000 is an apocalyptic number.

20622620000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20622620000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25418269800).

20622620000 is an abundant number, since it is smaller than the sum of its proper divisors (30213919600).

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

20622620000 is an equidigital number, since it uses as much as digits as its factorization.

20622620000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2098 (or 2075 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The spelling of 20622620000 in words is "twenty billion, six hundred twenty-two million, six hundred twenty thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 125 160 200 250 400 500 625 800 839 1000 1229 1250 1678 2000 2458 2500 3356 4000 4195 4916 5000 6145 6712 8390 9832 10000 12290 13424 16780 19664 20000 20975 24580 26848 30725 33560 39328 41950 49160 61450 67120 83900 98320 104875 122900 134240 153625 167800 196640 209750 245800 307250 335600 419500 491600 524375 614500 671200 768125 839000 983200 1031131 1048750 1229000 1536250 1678000 2062262 2097500 2458000 3072500 3356000 4124524 4195000 4916000 5155655 6145000 8249048 8390000 10311310 12290000 16498096 16780000 20622620 24580000 25778275 32996192 41245240 51556550 82490480 103113100 128891375 164980960 206226200 257782750 412452400 515565500 644456875 824904800 1031131000 1288913750 2062262000 2577827500 4124524000 5155655000 10311310000 20622620000