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20678292000 = 2532533071871
BaseRepresentation
bin10011010000100001…
…011011001000100000
31222101002212001221200
4103100201123020200
5314322120321000
613255515321200
71331266403412
oct232041331040
958332761850
1020678292000
1188513a1923
124011150200
131c47086352
14100240c9b2
158105a1500
hex4d085b220

20678292000 has 288 divisors, whose sum is σ = 73665656064. Its totient is φ = 5493312000.

The previous prime is 20678291993. The next prime is 20678292073. The reversal of 20678292000 is 29287602.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11051065 + ... + 11052935.

It is an arithmetic number, because the mean of its divisors is an integer number (255783528).

Almost surely, 220678292000 is an apocalyptic number.

20678292000 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 20678292000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36832828032).

20678292000 is an abundant number, since it is smaller than the sum of its proper divisors (52987364064).

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

20678292000 is a wasteful number, since it uses less digits than its factorization.

20678292000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2209 (or 2188 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 20678292000 in words is "twenty billion, six hundred seventy-eight million, two hundred ninety-two thousand".