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30700896 = 2531931657
BaseRepresentation
bin111010100011…
…1010101100000
32010202202201020
41311013111200
530324412041
63014005440
7521644662
oct165072540
963682636
1030700896
111636a046
12a346880
13648c015
144112532
152a66866
hex1d47560

30700896 has 48 divisors (see below), whose sum is σ = 81056304. Its totient is φ = 10174464.

The previous prime is 30700889. The next prime is 30700909. The reversal of 30700896 is 69800703.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

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, 17700 + ... + 19356.

It is an arithmetic number, because the mean of its divisors is an integer number (1688673).

Almost surely, 230700896 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 30700896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40528152).

30700896 is an abundant number, since it is smaller than the sum of its proper divisors (50355408).

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

30700896 is a wasteful number, since it uses less digits than its factorization.

30700896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1863 (or 1855 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 30700896 is about 5540.8389256502. The cubic root of 30700896 is about 313.1244762761.

The spelling of 30700896 in words is "thirty million, seven hundred thousand, eight hundred ninety-six".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 193 386 579 772 1158 1544 1657 2316 3088 3314 4632 4971 6176 6628 9264 9942 13256 18528 19884 26512 39768 53024 79536 159072 319801 639602 959403 1279204 1918806 2558408 3837612 5116816 7675224 10233632 15350448 30700896