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4380126972 = 2231333184827
BaseRepresentation
bin1000001010001001…
…10110111011111100
3102022020222111121220
410011010312323330
532432303030342
62002345153340
7213354315324
oct40504667374
912266874556
104380126972
111948516251
12a22a8b850
1354a5c5610
142d7a24284
151a98105ec
hex105136efc

4380126972 has 48 divisors (see below), whose sum is σ = 11039855232. Its totient is φ = 1343643840.

The previous prime is 4380126967. The next prime is 4380126979. The reversal of 4380126972 is 2796210834.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4380126979) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 9223 + ... + 94049.

It is an arithmetic number, because the mean of its divisors is an integer number (229996984).

Almost surely, 24380126972 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 4380126972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5519927616).

4380126972 is an abundant number, since it is smaller than the sum of its proper divisors (6659728260).

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

4380126972 is a wasteful number, since it uses less digits than its factorization.

4380126972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85178 (or 85176 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 4380126972 is about 66182.5276942487. The cubic root of 4380126972 is about 1636.1717881830.

The spelling of 4380126972 in words is "four billion, three hundred eighty million, one hundred twenty-six thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 331 662 993 1324 1986 3972 4303 8606 12909 17212 25818 51636 84827 169654 254481 339308 508962 1017924 1102751 2205502 3308253 4411004 6616506 13233012 28077737 56155474 84233211 112310948 168466422 336932844 365010581 730021162 1095031743 1460042324 2190063486 4380126972