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30401778038 = 219378761083
BaseRepresentation
bin11100010100000101…
…100101000101110110
32220110202022100020012
4130110011211011312
5444230323344123
621544423340222
72124245564252
oct342405450566
986422270205
1030401778038
11119910138a5
125a855b1672
132b366a9a98
141685953262
15bce03e378
hex714165176

30401778038 has 8 divisors (see below), whose sum is σ = 45838950888. Its totient is φ = 15122127744.

The previous prime is 30401778037. The next prime is 30401778067. The reversal of 30401778038 is 83087710403.

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

It is a junction number, because it is equal to n+sod(n) for n = 30401777986 and 30401778004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30401778037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39380156 + ... + 39380927.

It is an arithmetic number, because the mean of its divisors is an integer number (5729868861).

Almost surely, 230401778038 is an apocalyptic number.

30401778038 is a deficient number, since it is larger than the sum of its proper divisors (15437172850).

30401778038 is a wasteful number, since it uses less digits than its factorization.

30401778038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78761278.

The product of its (nonzero) digits is 112896, while the sum is 41.

The spelling of 30401778038 in words is "thirty billion, four hundred one million, seven hundred seventy-eight thousand, thirty-eight".

Divisors: 1 2 193 386 78761083 157522166 15200889019 30401778038