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78328030030 = 2527751282253
BaseRepresentation
bin100100011110010110…
…1101110001101001110
321111011211000012101021
41020330231232031032
52240403433430110
655552225304354
75442020161405
oct1107455561516
9244154005337
1078328030030
1130245149318
121321ba950ba
137503920983
143b10aac63c
1520868052da
hex123cb6e34e

78328030030 has 16 divisors (see below), whose sum is σ = 140996034144. Its totient is φ = 31329972000.

The previous prime is 78328029931. The next prime is 78328030031. The reversal of 78328030030 is 3003082387.

It is a happy number.

It is a super-2 number, since 2×783280300302 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78328030031) 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, 136384 + ... + 418636.

It is an arithmetic number, because the mean of its divisors is an integer number (8812252134).

Almost surely, 278328030030 is an apocalyptic number.

78328030030 is a deficient number, since it is larger than the sum of its proper divisors (62668004114).

78328030030 is a wasteful number, since it uses less digits than its factorization.

78328030030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310011.

The product of its (nonzero) digits is 24192, while the sum is 34.

The spelling of 78328030030 in words is "seventy-eight billion, three hundred twenty-eight million, thirty thousand, thirty".

Divisors: 1 2 5 10 27751 55502 138755 277510 282253 564506 1411265 2822530 7832803003 15665606006 39164015015 78328030030