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34897009420 = 225713217531637
BaseRepresentation
bin100000100000000001…
…100001101100001100
310100002000212202102101
4200200001201230030
51032432113300140
624010444004444
72343531454150
oct404001415414
9110060782371
1034897009420
11138884a7759
12691ab30724
1333a1aa3c00
14199097b060
15d939d999a
hex820061b0c

34897009420 has 288 divisors, whose sum is σ = 97897258368. Its totient is φ = 10192306176.

The previous prime is 34897009409. The next prime is 34897009421. The reversal of 34897009420 is 2490079843.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (34897009421) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 21316842 + ... + 21318478.

It is an arithmetic number, because the mean of its divisors is an integer number (339921036).

Almost surely, 234897009420 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 34897009420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48948629184).

34897009420 is an abundant number, since it is smaller than the sum of its proper divisors (63000248948).

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

34897009420 is a wasteful number, since it uses less digits than its factorization.

34897009420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1749 (or 1734 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 46.

The spelling of 34897009420 in words is "thirty-four billion, eight hundred ninety-seven million, nine thousand, four hundred twenty".