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2031124312 = 2371092691237
BaseRepresentation
bin111100100010000…
…0111111101011000
312020112220210202101
41321010013331120
513124431434222
6533314013144
7101222162140
oct17104077530
95215823671
102031124312
11952575838
124882771b4
13264a54009
14153a7b920
15bd4ae927
hex79107f58

2031124312 has 64 divisors (see below), whose sum is σ = 4412232000. Its totient is φ = 858594816.

The previous prime is 2031124253. The next prime is 2031124313. The reversal of 2031124312 is 2134211302.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2031124312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031124313) 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, 1641358 + ... + 1642594.

It is an arithmetic number, because the mean of its divisors is an integer number (68941125).

Almost surely, 22031124312 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 2031124312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2206116000).

2031124312 is an abundant number, since it is smaller than the sum of its proper divisors (2381107688).

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

2031124312 is a wasteful number, since it uses less digits than its factorization.

2031124312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1628 (or 1624 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2031124312 is about 45067.9965385638. The cubic root of 2031124312 is about 1266.4231328048.

Adding to 2031124312 its reverse (2134211302), we get a palindrome (4165335614).

The spelling of 2031124312 in words is "two billion, thirty-one million, one hundred twenty-four thousand, three hundred twelve".

Divisors: 1 2 4 7 8 14 28 56 109 218 269 436 538 763 872 1076 1237 1526 1883 2152 2474 3052 3766 4948 6104 7532 8659 9896 15064 17318 29321 34636 58642 69272 117284 134833 205247 234568 269666 332753 410494 539332 665506 820988 943831 1078664 1331012 1641976 1887662 2329271 2662024 3775324 4658542 7550648 9317084 18634168 36270077 72540154 145080308 253890539 290160616 507781078 1015562156 2031124312