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88861454140 = 22541509212903
BaseRepresentation
bin101001011000010001…
…1100010111100111100
322111100220111120211011
41102300203202330330
52423442013013030
6104453345205004
76264032616604
oct1226043427474
9274326446734
1088861454140
113475aa797a8
121527b630764
1384c1c968c4
14442da07c04
1524a142eb2a
hex14b08e2f3c

88861454140 has 48 divisors (see below), whose sum is σ = 191536954560. Its totient is φ = 34609349120.

The previous prime is 88861454131. The next prime is 88861454153. The reversal of 88861454140 is 4145416888.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 310929 + ... + 523831.

It is an arithmetic number, because the mean of its divisors is an integer number (3990353220).

Almost surely, 288861454140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 88861454140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95768477280).

88861454140 is an abundant number, since it is smaller than the sum of its proper divisors (102675500420).

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

88861454140 is a wasteful number, since it uses less digits than its factorization.

88861454140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213462 (or 213460 counting only the distinct ones).

The product of its (nonzero) digits is 983040, while the sum is 49.

The spelling of 88861454140 in words is "eighty-eight billion, eight hundred sixty-one million, four hundred fifty-four thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 41 82 164 205 410 509 820 1018 2036 2545 5090 10180 20869 41738 83476 104345 208690 212903 417380 425806 851612 1064515 2129030 4258060 8729023 17458046 34916092 43645115 87290230 108367627 174580460 216735254 433470508 541838135 1083676270 2167352540 4443072707 8886145414 17772290828 22215363535 44430727070 88861454140