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30234400351421 = 77976077187251
BaseRepresentation
bin1101101111111011111101…
…01100010110010010111101
310222001101021100022100201012
412313331332230112102331
512430330022442221141
6144145254120125005
76240235424453030
oct667757654262275
9128041240270635
1030234400351421
1196a7378875452
123483767606765
1313b412667a446
147674d2083017
153766ed32eceb
hex1b7f7eb164bd

30234400351421 has 16 divisors (see below), whose sum is σ = 34995592458240. Its totient is φ = 25583792598000.

The previous prime is 30234400351409. The next prime is 30234400351471. The reversal of 30234400351421 is 12415300443203.

It is not a de Polignac number, because 30234400351421 - 218 = 30234400089277 is a prime.

It is a super-2 number, since 2×302344003514212 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30234400351471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 613046 + ... + 7800296.

It is an arithmetic number, because the mean of its divisors is an integer number (2187224528640).

Almost surely, 230234400351421 is an apocalyptic number.

It is an amenable number.

30234400351421 is a deficient number, since it is larger than the sum of its proper divisors (4761192106819).

30234400351421 is an equidigital number, since it uses as much as digits as its factorization.

30234400351421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7194944.

The product of its (nonzero) digits is 34560, while the sum is 32.

Adding to 30234400351421 its reverse (12415300443203), we get a palindrome (42649700794624).

The spelling of 30234400351421 in words is "thirty trillion, two hundred thirty-four billion, four hundred million, three hundred fifty-one thousand, four hundred twenty-one".

Divisors: 1 7 79 553 7607 53249 600953 4206671 7187251 50310757 567792829 3974549803 54673418357 382713928499 4319200050203 30234400351421