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1220410016 = 25729187871
BaseRepresentation
bin100100010111101…
…1111101010100000
310011001102020210222
41020233133222200
54444411110031
6321033342212
742146212460
oct11057375240
93131366728
101220410016
11576987121
122a0867968
13165abc407
14b8123ba0
157221ce7b
hex48bdfaa0

1220410016 has 48 divisors (see below), whose sum is σ = 2840624640. Its totient is φ = 504994560.

The previous prime is 1220410013. The next prime is 1220410019. The reversal of 1220410016 is 6100140221.

It is an interprime number because it is at equal distance from previous prime (1220410013) and next prime (1220410019).

It is a junction number, because it is equal to n+sod(n) for n = 1220409976 and 1220410003.

It is not an unprimeable number, because it can be changed into a prime (1220410013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87440 + ... + 100431.

It is an arithmetic number, because the mean of its divisors is an integer number (59179680).

Almost surely, 21220410016 is an apocalyptic number.

1220410016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1220410016 is an abundant number, since it is smaller than the sum of its proper divisors (1620214624).

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

1220410016 is a wasteful number, since it uses less digits than its factorization.

1220410016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187917 (or 187909 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1220410016 is about 34934.3672620530. The cubic root of 1220410016 is about 1068.6494200982.

Adding to 1220410016 its reverse (6100140221), we get a palindrome (7320550237).

The spelling of 1220410016 in words is "one billion, two hundred twenty million, four hundred ten thousand, sixteen".

Divisors: 1 2 4 7 8 14 16 28 29 32 56 58 112 116 203 224 232 406 464 812 928 1624 3248 6496 187871 375742 751484 1315097 1502968 2630194 3005936 5260388 5448259 6011872 10520776 10896518 21041552 21793036 38137813 42083104 43586072 76275626 87172144 152551252 174344288 305102504 610205008 1220410016