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121016160 = 25335109257
BaseRepresentation
bin1110011011010…
…00111101100000
322102201020222000
413031220331200
5221440004120
620001444000
72666422536
oct715507540
9272636860
10121016160
1162346261
1234640600
131c0c15c5
1412102156
15a956990
hex7368f60

121016160 has 192 divisors, whose sum is σ = 429105600. Its totient is φ = 31850496.

The previous prime is 121016153. The next prime is 121016167. The reversal of 121016160 is 61610121.

It is an interprime number because it is at equal distance from previous prime (121016153) and next prime (121016167).

It is a super-2 number, since 2×1210161602 = 29289821962291200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121016167) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 470752 + ... + 471008.

It is an arithmetic number, because the mean of its divisors is an integer number (2234925).

Almost surely, 2121016160 is an apocalyptic number.

121016160 is a gapful number since it is divisible by the number (10) 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 121016160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214552800).

121016160 is an abundant number, since it is smaller than the sum of its proper divisors (308089440).

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

121016160 is a wasteful number, since it uses less digits than its factorization.

121016160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390 (or 376 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 121016160 is about 11000.7345209309. The cubic root of 121016160 is about 494.6307622905.

Adding to 121016160 its reverse (61610121), we get a palindrome (182626281).

The spelling of 121016160 in words is "one hundred twenty-one million, sixteen thousand, one hundred sixty".