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80109948 = 223292111091
BaseRepresentation
bin1001100011001…
…10000101111100
312120202000012010
410301212011330
5131002004243
611541011220
71661631462
oct461460574
9176660163
1080109948
1141246876
12229b3b10
131379b449
14a8d4832
157076433
hex4c6617c

80109948 has 48 divisors (see below), whose sum is σ = 194463360. Its totient is φ = 25636800.

The previous prime is 80109929. The next prime is 80109961. The reversal of 80109948 is 84990108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72883 + ... + 73973.

It is an arithmetic number, because the mean of its divisors is an integer number (4051320).

Almost surely, 280109948 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 80109948, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97231680).

80109948 is an abundant number, since it is smaller than the sum of its proper divisors (114353412).

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

80109948 is a wasteful number, since it uses less digits than its factorization.

80109948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1338 (or 1336 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 80109948 is about 8950.4160797138. The cubic root of 80109948 is about 431.0842441325.

The spelling of 80109948 in words is "eighty million, one hundred nine thousand, nine hundred forty-eight".

Divisors: 1 2 3 4 6 12 29 58 87 116 174 211 348 422 633 844 1091 1266 2182 2532 3273 4364 6119 6546 12238 13092 18357 24476 31639 36714 63278 73428 94917 126556 189834 230201 379668 460402 690603 920804 1381206 2762412 6675829 13351658 20027487 26703316 40054974 80109948