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442720086948048 = 2437131943165774869
BaseRepresentation
bin110010010101001101100110…
…1100001000111100011010000
32011001112121221001200001201010
41210222123031201013203100
5431012011214224314143
64205330444502410520
7162152320316406420
oct14452331541074320
92131477831601633
10442720086948048
11119078597436558
12417a2151430a40
131600542c215190
147b47aa3554480
15362b2735c3a33
hex192a6cd8478d0

442720086948048 has 640 divisors, whose sum is σ = 1517101854822400. Its totient is φ = 107976896004096.

The previous prime is 442720086948037. The next prime is 442720086948053. The reversal of 442720086948048 is 840849680027244.

It is a self number, because there is not a number n which added to its sum of digits gives 442720086948048.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 5913225558 + ... + 5913300426.

It is an arithmetic number, because the mean of its divisors is an integer number (2370471648160).

Almost surely, 2442720086948048 is an apocalyptic number.

442720086948048 is a gapful number since it is divisible by the number (48) 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 442720086948048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (758550927411200).

442720086948048 is an abundant number, since it is smaller than the sum of its proper divisors (1074381767874352).

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

442720086948048 is a wasteful number, since it uses less digits than its factorization.

442720086948048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76619 (or 76613 counting only the distinct ones).

The product of its (nonzero) digits is 198180864, while the sum is 66.

The spelling of 442720086948048 in words is "four hundred forty-two trillion, seven hundred twenty billion, eighty-six million, nine hundred forty-eight thousand, forty-eight".