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26970420 = 22351074201
BaseRepresentation
bin110011011100…
…0100100110100
31212202020110110
41212320210310
523401023140
62402023020
7445146651
oct146704464
955666413
1026970420
1114251304
129047a70
135784039
143820c28
15257b380
hex19b8934

26970420 has 48 divisors (see below), whose sum is σ = 76241088. Its totient is φ = 7123200.

The previous prime is 26970407. The next prime is 26970431. The reversal of 26970420 is 2407962.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4320 + ... + 8520.

It is an arithmetic number, because the mean of its divisors is an integer number (1588356).

Almost surely, 226970420 is an apocalyptic number.

26970420 is a gapful number since it is divisible by the number (20) 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 26970420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38120544).

26970420 is an abundant number, since it is smaller than the sum of its proper divisors (49270668).

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

26970420 is a wasteful number, since it uses less digits than its factorization.

26970420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4320 (or 4318 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 26970420 is about 5193.3053058722. The cubic root of 26970420 is about 299.8904044120.

The spelling of 26970420 in words is "twenty-six million, nine hundred seventy thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 107 214 321 428 535 642 1070 1284 1605 2140 3210 4201 6420 8402 12603 16804 21005 25206 42010 50412 63015 84020 126030 252060 449507 899014 1348521 1798028 2247535 2697042 4495070 5394084 6742605 8990140 13485210 26970420