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20880583142 = 228859361769
BaseRepresentation
bin10011011100100101…
…000110100111100110
31222220012111112020012
4103130211012213212
5320230412130032
613331543210222
71336304012456
oct233445064746
958805445205
1020880583142
1189455aa191
124068a46972
131c79c63453
141021229d66
1582320e6b2
hex4dc9469e6

20880583142 has 8 divisors (see below), whose sum is σ = 31322046600. Its totient is φ = 10439900944.

The previous prime is 20880583133. The next prime is 20880583181. The reversal of 20880583142 is 24138508802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20880583142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123167 + ... + 238602.

It is an arithmetic number, because the mean of its divisors is an integer number (3915255825).

Almost surely, 220880583142 is an apocalyptic number.

20880583142 is a deficient number, since it is larger than the sum of its proper divisors (10441463458).

20880583142 is a wasteful number, since it uses less digits than its factorization.

20880583142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390630.

The product of its (nonzero) digits is 122880, while the sum is 41.

The spelling of 20880583142 in words is "twenty billion, eight hundred eighty million, five hundred eighty-three thousand, one hundred forty-two".

Divisors: 1 2 28859 57718 361769 723538 10440291571 20880583142