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1226371085 = 51861131797
BaseRepresentation
bin100100100011000…
…1111000000001101
310011110122002212022
41021012033000031
510002422333320
6321405215525
742250660622
oct11106170015
93143562768
101226371085
1157a288825
122a28615a5
131670c8784
14b8c36349
15729e9325
hex4918f00d

1226371085 has 8 divisors (see below), whose sum is σ = 1472447256. Its totient is φ = 980562240.

The previous prime is 1226371061. The next prime is 1226371121. The reversal of 1226371085 is 5801736221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 43217476 + 1183153609 = 6574^2 + 34397^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-1226371085 is a prime.

It is a super-3 number, since 3×12263710853 (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56594 + ... + 75203.

It is an arithmetic number, because the mean of its divisors is an integer number (184055907).

Almost surely, 21226371085 is an apocalyptic number.

It is an amenable number.

1226371085 is a deficient number, since it is larger than the sum of its proper divisors (246076171).

1226371085 is a wasteful number, since it uses less digits than its factorization.

1226371085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133663.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 1226371085 is about 35019.5814509540. The cubic root of 1226371085 is about 1070.3865273117.

The spelling of 1226371085 in words is "one billion, two hundred twenty-six million, three hundred seventy-one thousand, eighty-five".

Divisors: 1 5 1861 9305 131797 658985 245274217 1226371085