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621101348140 = 22571317145913759
BaseRepresentation
bin10010000100111001000…
…01100111010100101100
32012101011121202121100211
421002130201213110230
540134003421120030
61153155141232204
762605320231310
oct11023441472454
92171147677324
10621101348140
1121a453578799
12a0459702664
1346753568620
14220c0939b40
151125263912a
hex909c86752c

621101348140 has 192 divisors, whose sum is σ = 1701026611200. Its totient is φ = 184865255424.

The previous prime is 621101348117. The next prime is 621101348227. The reversal of 621101348140 is 41843101126.

It is a super-2 number, since 2×6211013481402 (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 45134581 + ... + 45148339.

It is an arithmetic number, because the mean of its divisors is an integer number (8859513600).

Almost surely, 2621101348140 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 621101348140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (850513305600).

621101348140 is an abundant number, since it is smaller than the sum of its proper divisors (1079925263060).

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

621101348140 is a wasteful number, since it uses less digits than its factorization.

621101348140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15264 (or 15262 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

Adding to 621101348140 its reverse (41843101126), we get a palindrome (662944449266).

The spelling of 621101348140 in words is "six hundred twenty-one billion, one hundred one million, three hundred forty-eight thousand, one hundred forty".